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Finding the Fourth Proportional to 147,145.80, 220,718.70 and 36,337.80

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Solution

The fourth proportional to 147,145.80, 220,718.70 and 36,337.80 is: 54,506.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,145.80 : 220,718.70 = 36,337.80 : x
  2. Step 2: Convert to fraction form
    147,145.80/220,718.70 = 36,337.80/x
  3. Step 3: Cross multiply
    147,145.80x = 220,718.70 × 36,337.80
  4. Step 4: Simplify right side
    147,145.80x = 8,020,431,976.86
  5. Step 5: Solve for x
    x = 8,020,431,976.86/147,145.80
  6. Step 6: Final answer
    x = 54,506.70

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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.