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Finding the Fourth Proportional to 235,666.54, 353,454.16 and 91,572.10

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Solution

The fourth proportional to 235,666.54, 353,454.16 and 91,572.10 is: 137,340.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,666.54 : 353,454.16 = 91,572.10 : x
  2. Step 2: Convert to fraction form
    235,666.54/353,454.16 = 91,572.10/x
  3. Step 3: Cross multiply
    235,666.54x = 353,454.16 × 91,572.10
  4. Step 4: Simplify right side
    235,666.54x = 32,366,539,684.94
  5. Step 5: Solve for x
    x = 32,366,539,684.94/235,666.54
  6. Step 6: Final answer
    x = 137,340.41

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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.