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Finding the Fourth Proportional to 79,079.79, 118,488.47 and 55,657.02

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Solution

The fourth proportional to 79,079.79, 118,488.47 and 55,657.02 is: 83,393.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,079.79 : 118,488.47 = 55,657.02 : x
  2. Step 2: Convert to fraction form
    79,079.79/118,488.47 = 55,657.02/x
  3. Step 3: Cross multiply
    79,079.79x = 118,488.47 × 55,657.02
  4. Step 4: Simplify right side
    79,079.79x = 6,594,715,623.68
  5. Step 5: Solve for x
    x = 6,594,715,623.68/79,079.79
  6. Step 6: Final answer
    x = 83,393.18

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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.