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Finding the Fourth Proportional to 72,804.67, 100,501.44 and 48,945.18

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Solution

The fourth proportional to 72,804.67, 100,501.44 and 48,945.18 is: 67,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,804.67 : 100,501.44 = 48,945.18 : x
  2. Step 2: Convert to fraction form
    72,804.67/100,501.44 = 48,945.18/x
  3. Step 3: Cross multiply
    72,804.67x = 100,501.44 × 48,945.18
  4. Step 4: Simplify right side
    72,804.67x = 4,919,061,259.50
  5. Step 5: Solve for x
    x = 4,919,061,259.50/72,804.67
  6. Step 6: Final answer
    x = 67,565.19

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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.