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Finding the Fourth Proportional to 124,412.40, 187,079.40 and 104,137.20

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Solution

The fourth proportional to 124,412.40, 187,079.40 and 104,137.20 is: 156,591.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,412.40 : 187,079.40 = 104,137.20 : x
  2. Step 2: Convert to fraction form
    124,412.40/187,079.40 = 104,137.20/x
  3. Step 3: Cross multiply
    124,412.40x = 187,079.40 × 104,137.20
  4. Step 4: Simplify right side
    124,412.40x = 19,481,924,893.68
  5. Step 5: Solve for x
    x = 19,481,924,893.68/124,412.40
  6. Step 6: Final answer
    x = 156,591.50

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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.