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Finding the Fourth Proportional to 318,654.32, 477,870.08 and 93,955.10

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Solution

The fourth proportional to 318,654.32, 477,870.08 and 93,955.10 is: 140,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,654.32 : 477,870.08 = 93,955.10 : x
  2. Step 2: Convert to fraction form
    318,654.32/477,870.08 = 93,955.10/x
  3. Step 3: Cross multiply
    318,654.32x = 477,870.08 × 93,955.10
  4. Step 4: Simplify right side
    318,654.32x = 44,898,331,153.41
  5. Step 5: Solve for x
    x = 44,898,331,153.41/318,654.32
  6. Step 6: Final answer
    x = 140,899.80

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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.