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Finding the Fourth Proportional to 150,059.65, 207,100.19 and 86,409.85

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Solution

The fourth proportional to 150,059.65, 207,100.19 and 86,409.85 is: 119,255.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,059.65 : 207,100.19 = 86,409.85 : x
  2. Step 2: Convert to fraction form
    150,059.65/207,100.19 = 86,409.85/x
  3. Step 3: Cross multiply
    150,059.65x = 207,100.19 × 86,409.85
  4. Step 4: Simplify right side
    150,059.65x = 17,895,495,920.82
  5. Step 5: Solve for x
    x = 17,895,495,920.82/150,059.65
  6. Step 6: Final answer
    x = 119,255.88

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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.