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Finding the Fourth Proportional to 72,385.80, 99,873.48 and 41,751.48

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Solution

The fourth proportional to 72,385.80, 99,873.48 and 41,751.48 is: 57,606.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,385.80 : 99,873.48 = 41,751.48 : x
  2. Step 2: Convert to fraction form
    72,385.80/99,873.48 = 41,751.48/x
  3. Step 3: Cross multiply
    72,385.80x = 99,873.48 × 41,751.48
  4. Step 4: Simplify right side
    72,385.80x = 4,169,865,602.75
  5. Step 5: Solve for x
    x = 4,169,865,602.75/72,385.80
  6. Step 6: Final answer
    x = 57,606.13

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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.