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Finding the Fourth Proportional to 261,127.50, 360,370.53 and 147,986.70

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Solution

The fourth proportional to 261,127.50, 360,370.53 and 147,986.70 is: 204,229.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,127.50 : 360,370.53 = 147,986.70 : x
  2. Step 2: Convert to fraction form
    261,127.50/360,370.53 = 147,986.70/x
  3. Step 3: Cross multiply
    261,127.50x = 360,370.53 × 147,986.70
  4. Step 4: Simplify right side
    261,127.50x = 53,330,045,511.95
  5. Step 5: Solve for x
    x = 53,330,045,511.95/261,127.50
  6. Step 6: Final answer
    x = 204,229.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.