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Finding the Fourth Proportional to 132,547.55, 198,831.92 and 79,600.28

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Solution

The fourth proportional to 132,547.55, 198,831.92 and 79,600.28 is: 119,406.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,547.55 : 198,831.92 = 79,600.28 : x
  2. Step 2: Convert to fraction form
    132,547.55/198,831.92 = 79,600.28/x
  3. Step 3: Cross multiply
    132,547.55x = 198,831.92 × 79,600.28
  4. Step 4: Simplify right side
    132,547.55x = 15,827,076,504.94
  5. Step 5: Solve for x
    x = 15,827,076,504.94/132,547.55
  6. Step 6: Final answer
    x = 119,406.78

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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.