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Finding the Fourth Proportional to 125,506.88, 188,254.56 and 42,401.60

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Solution

The fourth proportional to 125,506.88, 188,254.56 and 42,401.60 is: 63,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,506.88 : 188,254.56 = 42,401.60 : x
  2. Step 2: Convert to fraction form
    125,506.88/188,254.56 = 42,401.60/x
  3. Step 3: Cross multiply
    125,506.88x = 188,254.56 × 42,401.60
  4. Step 4: Simplify right side
    125,506.88x = 7,982,294,551.30
  5. Step 5: Solve for x
    x = 7,982,294,551.30/125,506.88
  6. Step 6: Final answer
    x = 63,600.45

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1.5x scale

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.