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Finding the Fourth Proportional to 83,354.16, 115,024.24 and 45,621.12

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Solution

The fourth proportional to 83,354.16, 115,024.24 and 45,621.12 is: 62,954.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,354.16 : 115,024.24 = 45,621.12 : x
  2. Step 2: Convert to fraction form
    83,354.16/115,024.24 = 45,621.12/x
  3. Step 3: Cross multiply
    83,354.16x = 115,024.24 × 45,621.12
  4. Step 4: Simplify right side
    83,354.16x = 5,247,534,655.95
  5. Step 5: Solve for x
    x = 5,247,534,655.95/83,354.16
  6. Step 6: Final answer
    x = 62,954.68

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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.