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Finding the Fourth Proportional to 173,028, 238,778.64 and 93,540

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Solution

The fourth proportional to 173,028, 238,778.64 and 93,540 is: 129,085.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,028 : 238,778.64 = 93,540 : x
  2. Step 2: Convert to fraction form
    173,028/238,778.64 = 93,540/x
  3. Step 3: Cross multiply
    173,028x = 238,778.64 × 93,540
  4. Step 4: Simplify right side
    173,028x = 22,335,353,985.60
  5. Step 5: Solve for x
    x = 22,335,353,985.60/173,028
  6. Step 6: Final answer
    x = 129,085.20

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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.