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Finding the Fourth Proportional to 101,275.52, 151,925.40 and 42,151.16

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Solution

The fourth proportional to 101,275.52, 151,925.40 and 42,151.16 is: 63,231.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,275.52 : 151,925.40 = 42,151.16 : x
  2. Step 2: Convert to fraction form
    101,275.52/151,925.40 = 42,151.16/x
  3. Step 3: Cross multiply
    101,275.52x = 151,925.40 × 42,151.16
  4. Step 4: Simplify right side
    101,275.52x = 6,403,831,843.46
  5. Step 5: Solve for x
    x = 6,403,831,843.46/101,275.52
  6. Step 6: Final answer
    x = 63,231.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.