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Finding the Fourth Proportional to 76,587.83, 105,675.55 and 44,750.57

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Solution

The fourth proportional to 76,587.83, 105,675.55 and 44,750.57 is: 61,746.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,587.83 : 105,675.55 = 44,750.57 : x
  2. Step 2: Convert to fraction form
    76,587.83/105,675.55 = 44,750.57/x
  3. Step 3: Cross multiply
    76,587.83x = 105,675.55 × 44,750.57
  4. Step 4: Simplify right side
    76,587.83x = 4,729,041,097.56
  5. Step 5: Solve for x
    x = 4,729,041,097.56/76,587.83
  6. Step 6: Final answer
    x = 61,746.64

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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.