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Finding the Fourth Proportional to 437,140.98, 655,712.64 and 121,597.92

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Solution

The fourth proportional to 437,140.98, 655,712.64 and 121,597.92 is: 182,397.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,140.98 : 655,712.64 = 121,597.92 : x
  2. Step 2: Convert to fraction form
    437,140.98/655,712.64 = 121,597.92/x
  3. Step 3: Cross multiply
    437,140.98x = 655,712.64 × 121,597.92
  4. Step 4: Simplify right side
    437,140.98x = 79,733,293,141.71
  5. Step 5: Solve for x
    x = 79,733,293,141.71/437,140.98
  6. Step 6: Final answer
    x = 182,397.21

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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.