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Finding the Fourth Proportional to 269,725.90, 372,219.90 and 148,867.18

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Solution

The fourth proportional to 269,725.90, 372,219.90 and 148,867.18 is: 205,435.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,725.90 : 372,219.90 = 148,867.18 : x
  2. Step 2: Convert to fraction form
    269,725.90/372,219.90 = 148,867.18/x
  3. Step 3: Cross multiply
    269,725.90x = 372,219.90 × 148,867.18
  4. Step 4: Simplify right side
    269,725.90x = 55,411,326,852.88
  5. Step 5: Solve for x
    x = 55,411,326,852.88/269,725.90
  6. Step 6: Final answer
    x = 205,435.69

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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.