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Finding the Fourth Proportional to 117,539, 176,287.68 and 53,482.28

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Solution

The fourth proportional to 117,539, 176,287.68 and 53,482.28 is: 80,213.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,539 : 176,287.68 = 53,482.28 : x
  2. Step 2: Convert to fraction form
    117,539/176,287.68 = 53,482.28/x
  3. Step 3: Cross multiply
    117,539x = 176,287.68 × 53,482.28
  4. Step 4: Simplify right side
    117,539x = 9,428,267,062.31
  5. Step 5: Solve for x
    x = 9,428,267,062.31/117,539
  6. Step 6: Final answer
    x = 80,213.95

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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.