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Finding the Fourth Proportional to 115,470.92, 159,348.30 and 64,484.48

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Solution

The fourth proportional to 115,470.92, 159,348.30 and 64,484.48 is: 88,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,470.92 : 159,348.30 = 64,484.48 : x
  2. Step 2: Convert to fraction form
    115,470.92/159,348.30 = 64,484.48/x
  3. Step 3: Cross multiply
    115,470.92x = 159,348.30 × 64,484.48
  4. Step 4: Simplify right side
    115,470.92x = 10,275,492,264.38
  5. Step 5: Solve for x
    x = 10,275,492,264.38/115,470.92
  6. Step 6: Final answer
    x = 88,987.71

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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.