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Finding the Fourth Proportional to 258,909.96, 357,405.86 and 174,076.20

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Solution

The fourth proportional to 258,909.96, 357,405.86 and 174,076.20 is: 240,299.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,909.96 : 357,405.86 = 174,076.20 : x
  2. Step 2: Convert to fraction form
    258,909.96/357,405.86 = 174,076.20/x
  3. Step 3: Cross multiply
    258,909.96x = 357,405.86 × 174,076.20
  4. Step 4: Simplify right side
    258,909.96x = 62,215,853,966.53
  5. Step 5: Solve for x
    x = 62,215,853,966.53/258,909.96
  6. Step 6: Final answer
    x = 240,299.19

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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.