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Finding the Fourth Proportional to 157,353.80, 217,130.82 and 93,679.16

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Solution

The fourth proportional to 157,353.80, 217,130.82 and 93,679.16 is: 129,266.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,353.80 : 217,130.82 = 93,679.16 : x
  2. Step 2: Convert to fraction form
    157,353.80/217,130.82 = 93,679.16/x
  3. Step 3: Cross multiply
    157,353.80x = 217,130.82 × 93,679.16
  4. Step 4: Simplify right side
    157,353.80x = 20,340,632,827.71
  5. Step 5: Solve for x
    x = 20,340,632,827.71/157,353.80
  6. Step 6: Final answer
    x = 129,266.87

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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.