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Finding the Fourth Proportional to 78,641.96, 108,528.96 and 44,653.60

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Solution

The fourth proportional to 78,641.96, 108,528.96 and 44,653.60 is: 61,623.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,641.96 : 108,528.96 = 44,653.60 : x
  2. Step 2: Convert to fraction form
    78,641.96/108,528.96 = 44,653.60/x
  3. Step 3: Cross multiply
    78,641.96x = 108,528.96 × 44,653.60
  4. Step 4: Simplify right side
    78,641.96x = 4,846,209,376.61
  5. Step 5: Solve for x
    x = 4,846,209,376.61/78,641.96
  6. Step 6: Final answer
    x = 61,623.71

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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.