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Finding the Fourth Proportional to 174,611.52, 240,971.20 and 99,160

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Solution

The fourth proportional to 174,611.52, 240,971.20 and 99,160 is: 136,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,611.52 : 240,971.20 = 99,160 : x
  2. Step 2: Convert to fraction form
    174,611.52/240,971.20 = 99,160/x
  3. Step 3: Cross multiply
    174,611.52x = 240,971.20 × 99,160
  4. Step 4: Simplify right side
    174,611.52x = 23,894,704,192
  5. Step 5: Solve for x
    x = 23,894,704,192/174,611.52
  6. Step 6: Final answer
    x = 136,844.95

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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.