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Finding the Fourth Proportional to 88,762.61, 133,185.08 and 38,836.13

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Solution

The fourth proportional to 88,762.61, 133,185.08 and 38,836.13 is: 58,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,762.61 : 133,185.08 = 38,836.13 : x
  2. Step 2: Convert to fraction form
    88,762.61/133,185.08 = 38,836.13/x
  3. Step 3: Cross multiply
    88,762.61x = 133,185.08 × 38,836.13
  4. Step 4: Simplify right side
    88,762.61x = 5,172,393,219.72
  5. Step 5: Solve for x
    x = 5,172,393,219.72/88,762.61
  6. Step 6: Final answer
    x = 58,272.21

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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.