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Finding the Fourth Proportional to 125,364.55, 187,870.01 and 69,229.93

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Solution

The fourth proportional to 125,364.55, 187,870.01 and 69,229.93 is: 103,747.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,364.55 : 187,870.01 = 69,229.93 : x
  2. Step 2: Convert to fraction form
    125,364.55/187,870.01 = 69,229.93/x
  3. Step 3: Cross multiply
    125,364.55x = 187,870.01 × 69,229.93
  4. Step 4: Simplify right side
    125,364.55x = 13,006,227,295.25
  5. Step 5: Solve for x
    x = 13,006,227,295.25/125,364.55
  6. Step 6: Final answer
    x = 103,747.25

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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.