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Finding the Fourth Proportional to 92,429.68, 127,552.96 and 49,988.20

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Solution

The fourth proportional to 92,429.68, 127,552.96 and 49,988.20 is: 68,983.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,429.68 : 127,552.96 = 49,988.20 : x
  2. Step 2: Convert to fraction form
    92,429.68/127,552.96 = 49,988.20/x
  3. Step 3: Cross multiply
    92,429.68x = 127,552.96 × 49,988.20
  4. Step 4: Simplify right side
    92,429.68x = 6,376,142,875.07
  5. Step 5: Solve for x
    x = 6,376,142,875.07/92,429.68
  6. Step 6: Final answer
    x = 68,983.72

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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.