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Finding the Fourth Proportional to 60,207.48, 90,315.54 and 20,764.02

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Solution

The fourth proportional to 60,207.48, 90,315.54 and 20,764.02 is: 31,147.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,207.48 : 90,315.54 = 20,764.02 : x
  2. Step 2: Convert to fraction form
    60,207.48/90,315.54 = 20,764.02/x
  3. Step 3: Cross multiply
    60,207.48x = 90,315.54 × 20,764.02
  4. Step 4: Simplify right side
    60,207.48x = 1,875,313,678.87
  5. Step 5: Solve for x
    x = 1,875,313,678.87/60,207.48
  6. Step 6: Final answer
    x = 31,147.52

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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.