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Finding the Fourth Proportional to 86,658.60, 129,890.70 and 44,522.40

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Solution

The fourth proportional to 86,658.60, 129,890.70 and 44,522.40 is: 66,733.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,658.60 : 129,890.70 = 44,522.40 : x
  2. Step 2: Convert to fraction form
    86,658.60/129,890.70 = 44,522.40/x
  3. Step 3: Cross multiply
    86,658.60x = 129,890.70 × 44,522.40
  4. Step 4: Simplify right side
    86,658.60x = 5,783,045,701.68
  5. Step 5: Solve for x
    x = 5,783,045,701.68/86,658.60
  6. Step 6: Final answer
    x = 66,733.66

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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.