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Finding the Fourth Proportional to 362,123.22, 499,382.88 and 216,905.76

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Solution

The fourth proportional to 362,123.22, 499,382.88 and 216,905.76 is: 299,122.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,123.22 : 499,382.88 = 216,905.76 : x
  2. Step 2: Convert to fraction form
    362,123.22/499,382.88 = 216,905.76/x
  3. Step 3: Cross multiply
    362,123.22x = 499,382.88 × 216,905.76
  4. Step 4: Simplify right side
    362,123.22x = 108,319,023,117.39
  5. Step 5: Solve for x
    x = 108,319,023,117.39/362,123.22
  6. Step 6: Final answer
    x = 299,122.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.