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Finding the Fourth Proportional to 92,412.61, 127,505.25 and 54,151.66

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Solution

The fourth proportional to 92,412.61, 127,505.25 and 54,151.66 is: 74,715.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,412.61 : 127,505.25 = 54,151.66 : x
  2. Step 2: Convert to fraction form
    92,412.61/127,505.25 = 54,151.66/x
  3. Step 3: Cross multiply
    92,412.61x = 127,505.25 × 54,151.66
  4. Step 4: Simplify right side
    92,412.61x = 6,904,620,946.22
  5. Step 5: Solve for x
    x = 6,904,620,946.22/92,412.61
  6. Step 6: Final answer
    x = 74,715.14

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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.