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Finding the Fourth Proportional to 125,210.58, 187,565.49 and 75,263.58

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Solution

The fourth proportional to 125,210.58, 187,565.49 and 75,263.58 is: 112,744.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,210.58 : 187,565.49 = 75,263.58 : x
  2. Step 2: Convert to fraction form
    125,210.58/187,565.49 = 75,263.58/x
  3. Step 3: Cross multiply
    125,210.58x = 187,565.49 × 75,263.58
  4. Step 4: Simplify right side
    125,210.58x = 14,116,850,261.85
  5. Step 5: Solve for x
    x = 14,116,850,261.85/125,210.58
  6. Step 6: Final answer
    x = 112,744.87

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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.