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Finding the Fourth Proportional to 157,074.33, 216,807.15 and 92,581.05

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Solution

The fourth proportional to 157,074.33, 216,807.15 and 92,581.05 is: 127,788.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,074.33 : 216,807.15 = 92,581.05 : x
  2. Step 2: Convert to fraction form
    157,074.33/216,807.15 = 92,581.05/x
  3. Step 3: Cross multiply
    157,074.33x = 216,807.15 × 92,581.05
  4. Step 4: Simplify right side
    157,074.33x = 20,072,233,131.60
  5. Step 5: Solve for x
    x = 20,072,233,131.60/157,074.33
  6. Step 6: Final answer
    x = 127,788.12

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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.