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Finding the Fourth Proportional to 67,788.76, 101,642.08 and 30,341.84

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Solution

The fourth proportional to 67,788.76, 101,642.08 and 30,341.84 is: 45,494.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,788.76 : 101,642.08 = 30,341.84 : x
  2. Step 2: Convert to fraction form
    67,788.76/101,642.08 = 30,341.84/x
  3. Step 3: Cross multiply
    67,788.76x = 101,642.08 × 30,341.84
  4. Step 4: Simplify right side
    67,788.76x = 3,084,007,728.63
  5. Step 5: Solve for x
    x = 3,084,007,728.63/67,788.76
  6. Step 6: Final answer
    x = 45,494.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.