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Finding the Fourth Proportional to 157,158.57, 216,883.43 and 85,543.23

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Solution

The fourth proportional to 157,158.57, 216,883.43 and 85,543.23 is: 118,052.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,158.57 : 216,883.43 = 85,543.23 : x
  2. Step 2: Convert to fraction form
    157,158.57/216,883.43 = 85,543.23/x
  3. Step 3: Cross multiply
    157,158.57x = 216,883.43 × 85,543.23
  4. Step 4: Simplify right side
    157,158.57x = 18,552,909,135.68
  5. Step 5: Solve for x
    x = 18,552,909,135.68/157,158.57
  6. Step 6: Final answer
    x = 118,052.16

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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.