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Finding the Fourth Proportional to 78,544.89, 108,365.45 and 44,549.73

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Solution

The fourth proportional to 78,544.89, 108,365.45 and 44,549.73 is: 61,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,544.89 : 108,365.45 = 44,549.73 : x
  2. Step 2: Convert to fraction form
    78,544.89/108,365.45 = 44,549.73/x
  3. Step 3: Cross multiply
    78,544.89x = 108,365.45 × 44,549.73
  4. Step 4: Simplify right side
    78,544.89x = 4,827,651,316.08
  5. Step 5: Solve for x
    x = 4,827,651,316.08/78,544.89
  6. Step 6: Final answer
    x = 61,463.60

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1.5x scale

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.