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Finding the Fourth Proportional to 98,344.60, 147,516.90 and 36,039.40

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Solution

The fourth proportional to 98,344.60, 147,516.90 and 36,039.40 is: 54,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,344.60 : 147,516.90 = 36,039.40 : x
  2. Step 2: Convert to fraction form
    98,344.60/147,516.90 = 36,039.40/x
  3. Step 3: Cross multiply
    98,344.60x = 147,516.90 × 36,039.40
  4. Step 4: Simplify right side
    98,344.60x = 5,316,420,565.86
  5. Step 5: Solve for x
    x = 5,316,420,565.86/98,344.60
  6. Step 6: Final answer
    x = 54,059.10

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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.