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Finding the Fourth Proportional to 71,000.70, 106,501.05 and 60,446.40

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Solution

The fourth proportional to 71,000.70, 106,501.05 and 60,446.40 is: 90,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,000.70 : 106,501.05 = 60,446.40 : x
  2. Step 2: Convert to fraction form
    71,000.70/106,501.05 = 60,446.40/x
  3. Step 3: Cross multiply
    71,000.70x = 106,501.05 × 60,446.40
  4. Step 4: Simplify right side
    71,000.70x = 6,437,605,068.72
  5. Step 5: Solve for x
    x = 6,437,605,068.72/71,000.70
  6. Step 6: Final answer
    x = 90,669.60

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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.