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Finding the Fourth Proportional to 140,476.95, 210,689.27 and 40,612.44

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Solution

The fourth proportional to 140,476.95, 210,689.27 and 40,612.44 is: 60,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,476.95 : 210,689.27 = 40,612.44 : x
  2. Step 2: Convert to fraction form
    140,476.95/210,689.27 = 40,612.44/x
  3. Step 3: Cross multiply
    140,476.95x = 210,689.27 × 40,612.44
  4. Step 4: Simplify right side
    140,476.95x = 8,556,605,133.46
  5. Step 5: Solve for x
    x = 8,556,605,133.46/140,476.95
  6. Step 6: Final answer
    x = 60,911.10

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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.