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Finding the Fourth Proportional to 88,273.93, 121,818.81 and 47,987.77

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Solution

The fourth proportional to 88,273.93, 121,818.81 and 47,987.77 is: 66,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,273.93 : 121,818.81 = 47,987.77 : x
  2. Step 2: Convert to fraction form
    88,273.93/121,818.81 = 47,987.77/x
  3. Step 3: Cross multiply
    88,273.93x = 121,818.81 × 47,987.77
  4. Step 4: Simplify right side
    88,273.93x = 5,845,813,035.95
  5. Step 5: Solve for x
    x = 5,845,813,035.95/88,273.93
  6. Step 6: Final answer
    x = 66,223.55

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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.