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Finding the Fourth Proportional to 157,018.50, 216,593.19 and 93,352.50

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Solution

The fourth proportional to 157,018.50, 216,593.19 and 93,352.50 is: 128,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,018.50 : 216,593.19 = 93,352.50 : x
  2. Step 2: Convert to fraction form
    157,018.50/216,593.19 = 93,352.50/x
  3. Step 3: Cross multiply
    157,018.50x = 216,593.19 × 93,352.50
  4. Step 4: Simplify right side
    157,018.50x = 20,219,515,769.48
  5. Step 5: Solve for x
    x = 20,219,515,769.48/157,018.50
  6. Step 6: Final answer
    x = 128,771.55

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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.