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Finding the Fourth Proportional to 88,335, 121,902.30 and 48,591

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Solution

The fourth proportional to 88,335, 121,902.30 and 48,591 is: 67,055.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,335 : 121,902.30 = 48,591 : x
  2. Step 2: Convert to fraction form
    88,335/121,902.30 = 48,591/x
  3. Step 3: Cross multiply
    88,335x = 121,902.30 × 48,591
  4. Step 4: Simplify right side
    88,335x = 5,923,354,659.30
  5. Step 5: Solve for x
    x = 5,923,354,659.30/88,335
  6. Step 6: Final answer
    x = 67,055.58

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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.