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Finding the Fourth Proportional to 79,034.60, 118,430.70 and 53,701.84

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Solution

The fourth proportional to 79,034.60, 118,430.70 and 53,701.84 is: 80,470.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,034.60 : 118,430.70 = 53,701.84 : x
  2. Step 2: Convert to fraction form
    79,034.60/118,430.70 = 53,701.84/x
  3. Step 3: Cross multiply
    79,034.60x = 118,430.70 × 53,701.84
  4. Step 4: Simplify right side
    79,034.60x = 6,359,946,502.49
  5. Step 5: Solve for x
    x = 6,359,946,502.49/79,034.60
  6. Step 6: Final answer
    x = 80,470.41

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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.