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Finding the Fourth Proportional to 157,134.70, 216,850.80 and 89,154.54

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Solution

The fourth proportional to 157,134.70, 216,850.80 and 89,154.54 is: 123,036.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,134.70 : 216,850.80 = 89,154.54 : x
  2. Step 2: Convert to fraction form
    157,134.70/216,850.80 = 89,154.54/x
  3. Step 3: Cross multiply
    157,134.70x = 216,850.80 × 89,154.54
  4. Step 4: Simplify right side
    157,134.70x = 19,333,233,322.63
  5. Step 5: Solve for x
    x = 19,333,233,322.63/157,134.70
  6. Step 6: Final answer
    x = 123,036.05

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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.