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Finding the Fourth Proportional to 108,549.70, 162,824.55 and 75,307.30

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Solution

The fourth proportional to 108,549.70, 162,824.55 and 75,307.30 is: 112,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,549.70 : 162,824.55 = 75,307.30 : x
  2. Step 2: Convert to fraction form
    108,549.70/162,824.55 = 75,307.30/x
  3. Step 3: Cross multiply
    108,549.70x = 162,824.55 × 75,307.30
  4. Step 4: Simplify right side
    108,549.70x = 12,261,877,234.22
  5. Step 5: Solve for x
    x = 12,261,877,234.22/108,549.70
  6. Step 6: Final answer
    x = 112,960.95

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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.