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Finding the Fourth Proportional to 123,612.40, 185,418.60 and 123,612.40

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Solution

The fourth proportional to 123,612.40, 185,418.60 and 123,612.40 is: 185,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,612.40 : 185,418.60 = 123,612.40 : x
  2. Step 2: Convert to fraction form
    123,612.40/185,418.60 = 123,612.40/x
  3. Step 3: Cross multiply
    123,612.40x = 185,418.60 × 123,612.40
  4. Step 4: Simplify right side
    123,612.40x = 22,920,038,150.64
  5. Step 5: Solve for x
    x = 22,920,038,150.64/123,612.40
  6. Step 6: Final answer
    x = 185,418.60

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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.