Home / 79,247.79-118,276.29-68,526.72

Finding the Fourth Proportional to 79,247.79, 118,276.29 and 68,526.72

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Solution

The fourth proportional to 79,247.79, 118,276.29 and 68,526.72 is: 102,275.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,247.79 : 118,276.29 = 68,526.72 : x
  2. Step 2: Convert to fraction form
    79,247.79/118,276.29 = 68,526.72/x
  3. Step 3: Cross multiply
    79,247.79x = 118,276.29 × 68,526.72
  4. Step 4: Simplify right side
    79,247.79x = 8,105,086,207.47
  5. Step 5: Solve for x
    x = 8,105,086,207.47/79,247.79
  6. Step 6: Final answer
    x = 102,275.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.