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Finding the Fourth Proportional to 125,126,656.40, 187,689,984.60 and 125,126,656.40

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Solution

The fourth proportional to 125,126,656.40, 187,689,984.60 and 125,126,656.40 is: 187,689,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,126,656.40 : 187,689,984.60 = 125,126,656.40 : x
  2. Step 2: Convert to fraction form
    125,126,656.40/187,689,984.60 = 125,126,656.40/x
  3. Step 3: Cross multiply
    125,126,656.40x = 187,689,984.60 × 125,126,656.40
  4. Step 4: Simplify right side
    125,126,656.40x = 23,485,020,212,765,492
  5. Step 5: Solve for x
    x = 23,485,020,212,765,492/125,126,656.40
  6. Step 6: Final answer
    x = 187,689,984.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.