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Finding the Fourth Proportional to 157,370.76, 217,178.82 and 92,842.44

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Solution

The fourth proportional to 157,370.76, 217,178.82 and 92,842.44 is: 128,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,370.76 : 217,178.82 = 92,842.44 : x
  2. Step 2: Convert to fraction form
    157,370.76/217,178.82 = 92,842.44/x
  3. Step 3: Cross multiply
    157,370.76x = 217,178.82 × 92,842.44
  4. Step 4: Simplify right side
    157,370.76x = 20,163,411,565.12
  5. Step 5: Solve for x
    x = 20,163,411,565.12/157,370.76
  6. Step 6: Final answer
    x = 128,126.80

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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.