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Finding the Fourth Proportional to 157,044.51, 216,759.90 and 89,101.23

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Solution

The fourth proportional to 157,044.51, 216,759.90 and 89,101.23 is: 122,981.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,044.51 : 216,759.90 = 89,101.23 : x
  2. Step 2: Convert to fraction form
    157,044.51/216,759.90 = 89,101.23/x
  3. Step 3: Cross multiply
    157,044.51x = 216,759.90 × 89,101.23
  4. Step 4: Simplify right side
    157,044.51x = 19,313,573,704.68
  5. Step 5: Solve for x
    x = 19,313,573,704.68/157,044.51
  6. Step 6: Final answer
    x = 122,981.53

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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.