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Finding the Fourth Proportional to 79,569.48, 109,803.80 and 47,304.16

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Solution

The fourth proportional to 79,569.48, 109,803.80 and 47,304.16 is: 65,278.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,569.48 : 109,803.80 = 47,304.16 : x
  2. Step 2: Convert to fraction form
    79,569.48/109,803.80 = 47,304.16/x
  3. Step 3: Cross multiply
    79,569.48x = 109,803.80 × 47,304.16
  4. Step 4: Simplify right side
    79,569.48x = 5,194,176,367.56
  5. Step 5: Solve for x
    x = 5,194,176,367.56/79,569.48
  6. Step 6: Final answer
    x = 65,278.50

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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.