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Finding the Fourth Proportional to 173,420, 239,319.60 and 93,932

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Solution

The fourth proportional to 173,420, 239,319.60 and 93,932 is: 129,626.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,420 : 239,319.60 = 93,932 : x
  2. Step 2: Convert to fraction form
    173,420/239,319.60 = 93,932/x
  3. Step 3: Cross multiply
    173,420x = 239,319.60 × 93,932
  4. Step 4: Simplify right side
    173,420x = 22,479,768,667.20
  5. Step 5: Solve for x
    x = 22,479,768,667.20/173,420
  6. Step 6: Final answer
    x = 129,626.16

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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.