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Finding the Fourth Proportional to 101,712.79, 152,572.83 and 42,466.96

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Solution

The fourth proportional to 101,712.79, 152,572.83 and 42,466.96 is: 63,701.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,712.79 : 152,572.83 = 42,466.96 : x
  2. Step 2: Convert to fraction form
    101,712.79/152,572.83 = 42,466.96/x
  3. Step 3: Cross multiply
    101,712.79x = 152,572.83 × 42,466.96
  4. Step 4: Simplify right side
    101,712.79x = 6,479,304,268.70
  5. Step 5: Solve for x
    x = 6,479,304,268.70/101,712.79
  6. Step 6: Final answer
    x = 63,701.96

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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.