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Finding the Fourth Proportional to 171,079.91, 256,603.35 and 52,719.47

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Solution

The fourth proportional to 171,079.91, 256,603.35 and 52,719.47 is: 79,074.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,079.91 : 256,603.35 = 52,719.47 : x
  2. Step 2: Convert to fraction form
    171,079.91/256,603.35 = 52,719.47/x
  3. Step 3: Cross multiply
    171,079.91x = 256,603.35 × 52,719.47
  4. Step 4: Simplify right side
    171,079.91x = 13,527,991,329.21
  5. Step 5: Solve for x
    x = 13,527,991,329.21/171,079.91
  6. Step 6: Final answer
    x = 79,074.11

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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.