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Finding the Fourth Proportional to 554,912.28, 832,348.98 and 155,549.88

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Solution

The fourth proportional to 554,912.28, 832,348.98 and 155,549.88 is: 233,319.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,912.28 : 832,348.98 = 155,549.88 : x
  2. Step 2: Convert to fraction form
    554,912.28/832,348.98 = 155,549.88/x
  3. Step 3: Cross multiply
    554,912.28x = 832,348.98 × 155,549.88
  4. Step 4: Simplify right side
    554,912.28x = 129,471,783,957.12
  5. Step 5: Solve for x
    x = 129,471,783,957.12/554,912.28
  6. Step 6: Final answer
    x = 233,319.37

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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.