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Finding the Fourth Proportional to 124,420.20, 186,630.30 and 41,314.20

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Solution

The fourth proportional to 124,420.20, 186,630.30 and 41,314.20 is: 61,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,420.20 : 186,630.30 = 41,314.20 : x
  2. Step 2: Convert to fraction form
    124,420.20/186,630.30 = 41,314.20/x
  3. Step 3: Cross multiply
    124,420.20x = 186,630.30 × 41,314.20
  4. Step 4: Simplify right side
    124,420.20x = 7,710,481,540.26
  5. Step 5: Solve for x
    x = 7,710,481,540.26/124,420.20
  6. Step 6: Final answer
    x = 61,971.30

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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.