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Finding the Fourth Proportional to 527,355.56, 791,167.30 and 153,378.56

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Solution

The fourth proportional to 527,355.56, 791,167.30 and 153,378.56 is: 230,106.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,355.56 : 791,167.30 = 153,378.56 : x
  2. Step 2: Convert to fraction form
    527,355.56/791,167.30 = 153,378.56/x
  3. Step 3: Cross multiply
    527,355.56x = 791,167.30 × 153,378.56
  4. Step 4: Simplify right side
    527,355.56x = 121,348,102,787.56
  5. Step 5: Solve for x
    x = 121,348,102,787.56/527,355.56
  6. Step 6: Final answer
    x = 230,106.80

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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.