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Finding the Fourth Proportional to 372,557.95, 558,668.80 and 106,255.17

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Solution

The fourth proportional to 372,557.95, 558,668.80 and 106,255.17 is: 159,334.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,557.95 : 558,668.80 = 106,255.17 : x
  2. Step 2: Convert to fraction form
    372,557.95/558,668.80 = 106,255.17/x
  3. Step 3: Cross multiply
    372,557.95x = 558,668.80 × 106,255.17
  4. Step 4: Simplify right side
    372,557.95x = 59,361,448,317.70
  5. Step 5: Solve for x
    x = 59,361,448,317.70/372,557.95
  6. Step 6: Final answer
    x = 159,334.81

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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.