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Finding the Fourth Proportional to 60,605.12, 90,786.72 and 48,146.24

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Solution

The fourth proportional to 60,605.12, 90,786.72 and 48,146.24 is: 72,123.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,605.12 : 90,786.72 = 48,146.24 : x
  2. Step 2: Convert to fraction form
    60,605.12/90,786.72 = 48,146.24/x
  3. Step 3: Cross multiply
    60,605.12x = 90,786.72 × 48,146.24
  4. Step 4: Simplify right side
    60,605.12x = 4,371,039,209.93
  5. Step 5: Solve for x
    x = 4,371,039,209.93/60,605.12
  6. Step 6: Final answer
    x = 72,123.27

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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.