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Finding the Fourth Proportional to 235,140.33, 352,803.95 and 75,240.90

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Solution

The fourth proportional to 235,140.33, 352,803.95 and 75,240.90 is: 112,891.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,140.33 : 352,803.95 = 75,240.90 : x
  2. Step 2: Convert to fraction form
    235,140.33/352,803.95 = 75,240.90/x
  3. Step 3: Cross multiply
    235,140.33x = 352,803.95 × 75,240.90
  4. Step 4: Simplify right side
    235,140.33x = 26,545,287,050.73
  5. Step 5: Solve for x
    x = 26,545,287,050.73/235,140.33
  6. Step 6: Final answer
    x = 112,891.25

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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.