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Finding the Fourth Proportional to 58,788.85, 88,099.21 and 46,978.55

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Solution

The fourth proportional to 58,788.85, 88,099.21 and 46,978.55 is: 70,400.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,788.85 : 88,099.21 = 46,978.55 : x
  2. Step 2: Convert to fraction form
    58,788.85/88,099.21 = 46,978.55/x
  3. Step 3: Cross multiply
    58,788.85x = 88,099.21 × 46,978.55
  4. Step 4: Simplify right side
    58,788.85x = 4,138,773,141.95
  5. Step 5: Solve for x
    x = 4,138,773,141.95/58,788.85
  6. Step 6: Final answer
    x = 70,400.65

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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.