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Finding the Fourth Proportional to 261,847.61, 361,350.13 and 148,670.36

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Solution

The fourth proportional to 261,847.61, 361,350.13 and 148,670.36 is: 205,165.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,847.61 : 361,350.13 = 148,670.36 : x
  2. Step 2: Convert to fraction form
    261,847.61/361,350.13 = 148,670.36/x
  3. Step 3: Cross multiply
    261,847.61x = 361,350.13 × 148,670.36
  4. Step 4: Simplify right side
    261,847.61x = 53,722,053,913.15
  5. Step 5: Solve for x
    x = 53,722,053,913.15/261,847.61
  6. Step 6: Final answer
    x = 205,165.34

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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.