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Finding the Fourth Proportional to 346,087.80, 519,131.70 and 121,701.60

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Solution

The fourth proportional to 346,087.80, 519,131.70 and 121,701.60 is: 182,552.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,087.80 : 519,131.70 = 121,701.60 : x
  2. Step 2: Convert to fraction form
    346,087.80/519,131.70 = 121,701.60/x
  3. Step 3: Cross multiply
    346,087.80x = 519,131.70 × 121,701.60
  4. Step 4: Simplify right side
    346,087.80x = 63,179,158,500.72
  5. Step 5: Solve for x
    x = 63,179,158,500.72/346,087.80
  6. Step 6: Final answer
    x = 182,552.40

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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.