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Finding the Fourth Proportional to 173,015.78, 238,780.05 and 101,398.82

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Solution

The fourth proportional to 173,015.78, 238,780.05 and 101,398.82 is: 139,941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,015.78 : 238,780.05 = 101,398.82 : x
  2. Step 2: Convert to fraction form
    173,015.78/238,780.05 = 101,398.82/x
  3. Step 3: Cross multiply
    173,015.78x = 238,780.05 × 101,398.82
  4. Step 4: Simplify right side
    173,015.78x = 24,212,015,309.54
  5. Step 5: Solve for x
    x = 24,212,015,309.54/173,015.78
  6. Step 6: Final answer
    x = 139,941.08

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1.5x scale

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.