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Finding the Fourth Proportional to 72,448.90, 101,221.10 and 72,448.90

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Solution

The fourth proportional to 72,448.90, 101,221.10 and 72,448.90 is: 101,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,448.90 : 101,221.10 = 72,448.90 : x
  2. Step 2: Convert to fraction form
    72,448.90/101,221.10 = 72,448.90/x
  3. Step 3: Cross multiply
    72,448.90x = 101,221.10 × 72,448.90
  4. Step 4: Simplify right side
    72,448.90x = 7,333,357,351.79
  5. Step 5: Solve for x
    x = 7,333,357,351.79/72,448.90
  6. Step 6: Final answer
    x = 101,221.10

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.