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Finding the Fourth Proportional to 125,305.98, 187,986.65 and 62,160.45

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Solution

The fourth proportional to 125,305.98, 187,986.65 and 62,160.45 is: 93,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,305.98 : 187,986.65 = 62,160.45 : x
  2. Step 2: Convert to fraction form
    125,305.98/187,986.65 = 62,160.45/x
  3. Step 3: Cross multiply
    125,305.98x = 187,986.65 × 62,160.45
  4. Step 4: Simplify right side
    125,305.98x = 11,685,333,742.24
  5. Step 5: Solve for x
    x = 11,685,333,742.24/125,305.98
  6. Step 6: Final answer
    x = 93,254.40

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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.