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Finding the Fourth Proportional to 103,457.80, 155,277.42 and 59,173.48

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Solution

The fourth proportional to 103,457.80, 155,277.42 and 59,173.48 is: 88,812.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,457.80 : 155,277.42 = 59,173.48 : x
  2. Step 2: Convert to fraction form
    103,457.80/155,277.42 = 59,173.48/x
  3. Step 3: Cross multiply
    103,457.80x = 155,277.42 × 59,173.48
  4. Step 4: Simplify right side
    103,457.80x = 9,188,305,306.82
  5. Step 5: Solve for x
    x = 9,188,305,306.82/103,457.80
  6. Step 6: Final answer
    x = 88,812.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.