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Finding the Fourth Proportional to 125,355.87, 187,909.88 and 46,448.91

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Solution

The fourth proportional to 125,355.87, 187,909.88 and 46,448.91 is: 69,627.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,355.87 : 187,909.88 = 46,448.91 : x
  2. Step 2: Convert to fraction form
    125,355.87/187,909.88 = 46,448.91/x
  3. Step 3: Cross multiply
    125,355.87x = 187,909.88 × 46,448.91
  4. Step 4: Simplify right side
    125,355.87x = 8,728,208,871.99
  5. Step 5: Solve for x
    x = 8,728,208,871.99/125,355.87
  6. Step 6: Final answer
    x = 69,627.44

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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.