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Finding the Fourth Proportional to 140,365.10, 210,348.62 and 108,627.42

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Solution

The fourth proportional to 140,365.10, 210,348.62 and 108,627.42 is: 162,787.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,365.10 : 210,348.62 = 108,627.42 : x
  2. Step 2: Convert to fraction form
    140,365.10/210,348.62 = 108,627.42/x
  3. Step 3: Cross multiply
    140,365.10x = 210,348.62 × 108,627.42
  4. Step 4: Simplify right side
    140,365.10x = 22,849,628,701.80
  5. Step 5: Solve for x
    x = 22,849,628,701.80/140,365.10
  6. Step 6: Final answer
    x = 162,787.11

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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.