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Finding the Fourth Proportional to 55,061.60, 75,985.02 and 29,911.10

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Solution

The fourth proportional to 55,061.60, 75,985.02 and 29,911.10 is: 41,277.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,061.60 : 75,985.02 = 29,911.10 : x
  2. Step 2: Convert to fraction form
    55,061.60/75,985.02 = 29,911.10/x
  3. Step 3: Cross multiply
    55,061.60x = 75,985.02 × 29,911.10
  4. Step 4: Simplify right side
    55,061.60x = 2,272,795,151.80
  5. Step 5: Solve for x
    x = 2,272,795,151.80/55,061.60
  6. Step 6: Final answer
    x = 41,277.32

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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.