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Finding the Fourth Proportional to 269,802.30, 372,353.67 and 156,618.30

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Solution

The fourth proportional to 269,802.30, 372,353.67 and 156,618.30 is: 216,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,802.30 : 372,353.67 = 156,618.30 : x
  2. Step 2: Convert to fraction form
    269,802.30/372,353.67 = 156,618.30/x
  3. Step 3: Cross multiply
    269,802.30x = 372,353.67 × 156,618.30
  4. Step 4: Simplify right side
    269,802.30x = 58,317,398,794.16
  5. Step 5: Solve for x
    x = 58,317,398,794.16/269,802.30
  6. Step 6: Final answer
    x = 216,148.63

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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.