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Finding the Fourth Proportional to 157,201.25, 216,925.27 and 89,218.22

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Solution

The fourth proportional to 157,201.25, 216,925.27 and 89,218.22 is: 123,114.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,201.25 : 216,925.27 = 89,218.22 : x
  2. Step 2: Convert to fraction form
    157,201.25/216,925.27 = 89,218.22/x
  3. Step 3: Cross multiply
    157,201.25x = 216,925.27 × 89,218.22
  4. Step 4: Simplify right side
    157,201.25x = 19,353,686,781.69
  5. Step 5: Solve for x
    x = 19,353,686,781.69/157,201.25
  6. Step 6: Final answer
    x = 123,114.07

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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.