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Finding the Fourth Proportional to 92,657.62, 127,875.38 and 77,523.58

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Solution

The fourth proportional to 92,657.62, 127,875.38 and 77,523.58 is: 106,989.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,657.62 : 127,875.38 = 77,523.58 : x
  2. Step 2: Convert to fraction form
    92,657.62/127,875.38 = 77,523.58/x
  3. Step 3: Cross multiply
    92,657.62x = 127,875.38 × 77,523.58
  4. Step 4: Simplify right side
    92,657.62x = 9,913,357,251.46
  5. Step 5: Solve for x
    x = 9,913,357,251.46/92,657.62
  6. Step 6: Final answer
    x = 106,989.12

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1.5x scale

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.