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Finding the Fourth Proportional to 180,753.88, 249,440.16 and 100,181.56

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Solution

The fourth proportional to 180,753.88, 249,440.16 and 100,181.56 is: 138,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,753.88 : 249,440.16 = 100,181.56 : x
  2. Step 2: Convert to fraction form
    180,753.88/249,440.16 = 100,181.56/x
  3. Step 3: Cross multiply
    180,753.88x = 249,440.16 × 100,181.56
  4. Step 4: Simplify right side
    180,753.88x = 24,989,304,355.45
  5. Step 5: Solve for x
    x = 24,989,304,355.45/180,753.88
  6. Step 6: Final answer
    x = 138,250.45

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1.5x scale

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.