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Finding the Fourth Proportional to 72,937.10, 109,405.65 and 62,002.10

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Solution

The fourth proportional to 72,937.10, 109,405.65 and 62,002.10 is: 93,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,937.10 : 109,405.65 = 62,002.10 : x
  2. Step 2: Convert to fraction form
    72,937.10/109,405.65 = 62,002.10/x
  3. Step 3: Cross multiply
    72,937.10x = 109,405.65 × 62,002.10
  4. Step 4: Simplify right side
    72,937.10x = 6,783,380,051.87
  5. Step 5: Solve for x
    x = 6,783,380,051.87/72,937.10
  6. Step 6: Final answer
    x = 93,003.15

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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.