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Finding the Fourth Proportional to 216,753.95, 325,158.62 and 83,672.28

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Solution

The fourth proportional to 216,753.95, 325,158.62 and 83,672.28 is: 125,519.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,753.95 : 325,158.62 = 83,672.28 : x
  2. Step 2: Convert to fraction form
    216,753.95/325,158.62 = 83,672.28/x
  3. Step 3: Cross multiply
    216,753.95x = 325,158.62 × 83,672.28
  4. Step 4: Simplify right side
    216,753.95x = 27,206,762,678.69
  5. Step 5: Solve for x
    x = 27,206,762,678.69/216,753.95
  6. Step 6: Final answer
    x = 125,519.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.