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Finding the Fourth Proportional to 97,362.68, 134,270.42 and 74,702.61

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Solution

The fourth proportional to 97,362.68, 134,270.42 and 74,702.61 is: 103,020.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,362.68 : 134,270.42 = 74,702.61 : x
  2. Step 2: Convert to fraction form
    97,362.68/134,270.42 = 74,702.61/x
  3. Step 3: Cross multiply
    97,362.68x = 134,270.42 × 74,702.61
  4. Step 4: Simplify right side
    97,362.68x = 10,030,350,446.28
  5. Step 5: Solve for x
    x = 10,030,350,446.28/97,362.68
  6. Step 6: Final answer
    x = 103,020.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.