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Finding the Fourth Proportional to 88,112.34, 121,600.95 and 49,871.82

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Solution

The fourth proportional to 88,112.34, 121,600.95 and 49,871.82 is: 68,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,112.34 : 121,600.95 = 49,871.82 : x
  2. Step 2: Convert to fraction form
    88,112.34/121,600.95 = 49,871.82/x
  3. Step 3: Cross multiply
    88,112.34x = 121,600.95 × 49,871.82
  4. Step 4: Simplify right side
    88,112.34x = 6,064,460,690.23
  5. Step 5: Solve for x
    x = 6,064,460,690.23/88,112.34
  6. Step 6: Final answer
    x = 68,826.46

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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.