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Finding the Fourth Proportional to 160,013.64, 220,831.74 and 88,399.92

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Solution

The fourth proportional to 160,013.64, 220,831.74 and 88,399.92 is: 121,999.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,013.64 : 220,831.74 = 88,399.92 : x
  2. Step 2: Convert to fraction form
    160,013.64/220,831.74 = 88,399.92/x
  3. Step 3: Cross multiply
    160,013.64x = 220,831.74 × 88,399.92
  4. Step 4: Simplify right side
    160,013.64x = 19,521,508,149.46
  5. Step 5: Solve for x
    x = 19,521,508,149.46/160,013.64
  6. Step 6: Final answer
    x = 121,999.03

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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.