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Finding the Fourth Proportional to 60,149.46, 90,223.77 and 47,012.88

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Solution

The fourth proportional to 60,149.46, 90,223.77 and 47,012.88 is: 70,518.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,149.46 : 90,223.77 = 47,012.88 : x
  2. Step 2: Convert to fraction form
    60,149.46/90,223.77 = 47,012.88/x
  3. Step 3: Cross multiply
    60,149.46x = 90,223.77 × 47,012.88
  4. Step 4: Simplify right side
    60,149.46x = 4,241,679,272.16
  5. Step 5: Solve for x
    x = 4,241,679,272.16/60,149.46
  6. Step 6: Final answer
    x = 70,518.99

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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.