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Finding the Fourth Proportional to 79,060.30, 109,065.51 and 48,834.74

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Solution

The fourth proportional to 79,060.30, 109,065.51 and 48,834.74 is: 67,368.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,060.30 : 109,065.51 = 48,834.74 : x
  2. Step 2: Convert to fraction form
    79,060.30/109,065.51 = 48,834.74/x
  3. Step 3: Cross multiply
    79,060.30x = 109,065.51 × 48,834.74
  4. Step 4: Simplify right side
    79,060.30x = 5,326,186,096.48
  5. Step 5: Solve for x
    x = 5,326,186,096.48/79,060.30
  6. Step 6: Final answer
    x = 67,368.66

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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.