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Finding the Fourth Proportional to 157,173.79, 216,893.79 and 89,186.71

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Solution

The fourth proportional to 157,173.79, 216,893.79 and 89,186.71 is: 123,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,173.79 : 216,893.79 = 89,186.71 : x
  2. Step 2: Convert to fraction form
    157,173.79/216,893.79 = 89,186.71/x
  3. Step 3: Cross multiply
    157,173.79x = 216,893.79 × 89,186.71
  4. Step 4: Simplify right side
    157,173.79x = 19,344,043,007.30
  5. Step 5: Solve for x
    x = 19,344,043,007.30/157,173.79
  6. Step 6: Final answer
    x = 123,074.23

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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.