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Finding the Fourth Proportional to 125,181.52, 172,752.69 and 68,589.52

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Solution

The fourth proportional to 125,181.52, 172,752.69 and 68,589.52 is: 94,654.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,181.52 : 172,752.69 = 68,589.52 : x
  2. Step 2: Convert to fraction form
    125,181.52/172,752.69 = 68,589.52/x
  3. Step 3: Cross multiply
    125,181.52x = 172,752.69 × 68,589.52
  4. Step 4: Simplify right side
    125,181.52x = 11,849,024,085.81
  5. Step 5: Solve for x
    x = 11,849,024,085.81/125,181.52
  6. Step 6: Final answer
    x = 94,654.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.