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Finding the Fourth Proportional to 101,475.52, 140,043.23 and 56,155.42

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Solution

The fourth proportional to 101,475.52, 140,043.23 and 56,155.42 is: 77,498.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,475.52 : 140,043.23 = 56,155.42 : x
  2. Step 2: Convert to fraction form
    101,475.52/140,043.23 = 56,155.42/x
  3. Step 3: Cross multiply
    101,475.52x = 140,043.23 × 56,155.42
  4. Step 4: Simplify right side
    101,475.52x = 7,864,186,398.81
  5. Step 5: Solve for x
    x = 7,864,186,398.81/101,475.52
  6. Step 6: Final answer
    x = 77,498.36

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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.