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Finding the Fourth Proportional to 173,480, 239,402.56 and 93,992

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Solution

The fourth proportional to 173,480, 239,402.56 and 93,992 is: 129,709.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,480 : 239,402.56 = 93,992 : x
  2. Step 2: Convert to fraction form
    173,480/239,402.56 = 93,992/x
  3. Step 3: Cross multiply
    173,480x = 239,402.56 × 93,992
  4. Step 4: Simplify right side
    173,480x = 22,501,925,419.52
  5. Step 5: Solve for x
    x = 22,501,925,419.52/173,480
  6. Step 6: Final answer
    x = 129,709.05

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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.