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Finding the Fourth Proportional to 261,270.92, 360,552.18 and 142,038.92

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Solution

The fourth proportional to 261,270.92, 360,552.18 and 142,038.92 is: 196,012.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,270.92 : 360,552.18 = 142,038.92 : x
  2. Step 2: Convert to fraction form
    261,270.92/360,552.18 = 142,038.92/x
  3. Step 3: Cross multiply
    261,270.92x = 360,552.18 × 142,038.92
  4. Step 4: Simplify right side
    261,270.92x = 51,212,442,250.85
  5. Step 5: Solve for x
    x = 51,212,442,250.85/261,270.92
  6. Step 6: Final answer
    x = 196,012.79

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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.