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Finding the Fourth Proportional to 99,254.44, 136,971.30 and 53,932

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Solution

The fourth proportional to 99,254.44, 136,971.30 and 53,932 is: 74,426.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,254.44 : 136,971.30 = 53,932 : x
  2. Step 2: Convert to fraction form
    99,254.44/136,971.30 = 53,932/x
  3. Step 3: Cross multiply
    99,254.44x = 136,971.30 × 53,932
  4. Step 4: Simplify right side
    99,254.44x = 7,387,136,151.60
  5. Step 5: Solve for x
    x = 7,387,136,151.60/99,254.44
  6. Step 6: Final answer
    x = 74,426.25

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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.