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Finding the Fourth Proportional to 117,545, 176,317.14 and 42,665.04

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Solution

The fourth proportional to 117,545, 176,317.14 and 42,665.04 is: 63,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,545 : 176,317.14 = 42,665.04 : x
  2. Step 2: Convert to fraction form
    117,545/176,317.14 = 42,665.04/x
  3. Step 3: Cross multiply
    117,545x = 176,317.14 × 42,665.04
  4. Step 4: Simplify right side
    117,545x = 7,522,577,830.79
  5. Step 5: Solve for x
    x = 7,522,577,830.79/117,545
  6. Step 6: Final answer
    x = 63,997.43

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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.