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Finding the Fourth Proportional to 92,442.47, 127,454.92 and 77,151.08

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Solution

The fourth proportional to 92,442.47, 127,454.92 and 77,151.08 is: 106,371.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,442.47 : 127,454.92 = 77,151.08 : x
  2. Step 2: Convert to fraction form
    92,442.47/127,454.92 = 77,151.08/x
  3. Step 3: Cross multiply
    92,442.47x = 127,454.92 × 77,151.08
  4. Step 4: Simplify right side
    92,442.47x = 9,833,284,855.07
  5. Step 5: Solve for x
    x = 9,833,284,855.07/92,442.47
  6. Step 6: Final answer
    x = 106,371.95

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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.