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Finding the Fourth Proportional to 157,079.52, 216,757.44 and 89,097.12

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Solution

The fourth proportional to 157,079.52, 216,757.44 and 89,097.12 is: 122,947.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,079.52 : 216,757.44 = 89,097.12 : x
  2. Step 2: Convert to fraction form
    157,079.52/216,757.44 = 89,097.12/x
  3. Step 3: Cross multiply
    157,079.52x = 216,757.44 × 89,097.12
  4. Step 4: Simplify right side
    157,079.52x = 19,312,463,642.57
  5. Step 5: Solve for x
    x = 19,312,463,642.57/157,079.52
  6. Step 6: Final answer
    x = 122,947.05

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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.