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Finding the Fourth Proportional to 76,587.81, 105,675.55 and 44,750.55

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Solution

The fourth proportional to 76,587.81, 105,675.55 and 44,750.55 is: 61,746.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,587.81 : 105,675.55 = 44,750.55 : x
  2. Step 2: Convert to fraction form
    76,587.81/105,675.55 = 44,750.55/x
  3. Step 3: Cross multiply
    76,587.81x = 105,675.55 × 44,750.55
  4. Step 4: Simplify right side
    76,587.81x = 4,729,038,984.05
  5. Step 5: Solve for x
    x = 4,729,038,984.05/76,587.81
  6. Step 6: Final answer
    x = 61,746.63

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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.