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Finding the Fourth Proportional to 120,689.52, 181,034.28 and 37,590

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Solution

The fourth proportional to 120,689.52, 181,034.28 and 37,590 is: 56,385

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,689.52 : 181,034.28 = 37,590 : x
  2. Step 2: Convert to fraction form
    120,689.52/181,034.28 = 37,590/x
  3. Step 3: Cross multiply
    120,689.52x = 181,034.28 × 37,590
  4. Step 4: Simplify right side
    120,689.52x = 6,805,078,585.20
  5. Step 5: Solve for x
    x = 6,805,078,585.20/120,689.52
  6. Step 6: Final answer
    x = 56,385

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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.