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Finding the Fourth Proportional to 65,648.94, 98,438.85 and 44,878.38

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Solution

The fourth proportional to 65,648.94, 98,438.85 and 44,878.38 is: 67,293.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,648.94 : 98,438.85 = 44,878.38 : x
  2. Step 2: Convert to fraction form
    65,648.94/98,438.85 = 44,878.38/x
  3. Step 3: Cross multiply
    65,648.94x = 98,438.85 × 44,878.38
  4. Step 4: Simplify right side
    65,648.94x = 4,417,776,117.06
  5. Step 5: Solve for x
    x = 4,417,776,117.06/65,648.94
  6. Step 6: Final answer
    x = 67,293.94

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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.