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Finding the Fourth Proportional to 248,347.28, 372,490.14 and 70,869.80

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Solution

The fourth proportional to 248,347.28, 372,490.14 and 70,869.80 is: 106,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,347.28 : 372,490.14 = 70,869.80 : x
  2. Step 2: Convert to fraction form
    248,347.28/372,490.14 = 70,869.80/x
  3. Step 3: Cross multiply
    248,347.28x = 372,490.14 × 70,869.80
  4. Step 4: Simplify right side
    248,347.28x = 26,398,301,723.77
  5. Step 5: Solve for x
    x = 26,398,301,723.77/248,347.28
  6. Step 6: Final answer
    x = 106,295.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.