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Finding the Fourth Proportional to 97,788.68, 134,950.32 and 63,818.90

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Solution

The fourth proportional to 97,788.68, 134,950.32 and 63,818.90 is: 88,071.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,788.68 : 134,950.32 = 63,818.90 : x
  2. Step 2: Convert to fraction form
    97,788.68/134,950.32 = 63,818.90/x
  3. Step 3: Cross multiply
    97,788.68x = 134,950.32 × 63,818.90
  4. Step 4: Simplify right side
    97,788.68x = 8,612,380,977.05
  5. Step 5: Solve for x
    x = 8,612,380,977.05/97,788.68
  6. Step 6: Final answer
    x = 88,071.35

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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.