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Finding the Fourth Proportional to 269,783.36, 372,243.28 and 156,545.36

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Solution

The fourth proportional to 269,783.36, 372,243.28 and 156,545.36 is: 215,999.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,783.36 : 372,243.28 = 156,545.36 : x
  2. Step 2: Convert to fraction form
    269,783.36/372,243.28 = 156,545.36/x
  3. Step 3: Cross multiply
    269,783.36x = 372,243.28 × 156,545.36
  4. Step 4: Simplify right side
    269,783.36x = 58,272,958,275.18
  5. Step 5: Solve for x
    x = 58,272,958,275.18/269,783.36
  6. Step 6: Final answer
    x = 215,999.08

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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.