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Finding the Fourth Proportional to 157,074.26, 216,746.30 and 93,399.76

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Solution

The fourth proportional to 157,074.26, 216,746.30 and 93,399.76 is: 128,882.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,074.26 : 216,746.30 = 93,399.76 : x
  2. Step 2: Convert to fraction form
    157,074.26/216,746.30 = 93,399.76/x
  3. Step 3: Cross multiply
    157,074.26x = 216,746.30 × 93,399.76
  4. Step 4: Simplify right side
    157,074.26x = 20,244,052,400.89
  5. Step 5: Solve for x
    x = 20,244,052,400.89/157,074.26
  6. Step 6: Final answer
    x = 128,882.05

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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.