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Finding the Fourth Proportional to 338,724.46, 508,037.20 and 98,773.89

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Solution

The fourth proportional to 338,724.46, 508,037.20 and 98,773.89 is: 148,146.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,724.46 : 508,037.20 = 98,773.89 : x
  2. Step 2: Convert to fraction form
    338,724.46/508,037.20 = 98,773.89/x
  3. Step 3: Cross multiply
    338,724.46x = 508,037.20 × 98,773.89
  4. Step 4: Simplify right side
    338,724.46x = 50,180,810,508.71
  5. Step 5: Solve for x
    x = 50,180,810,508.71/338,724.46
  6. Step 6: Final answer
    x = 148,146.40

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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.