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Finding the Fourth Proportional to 245,276.20, 368,149.20 and 127,032.40

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Solution

The fourth proportional to 245,276.20, 368,149.20 and 127,032.40 is: 190,670.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,276.20 : 368,149.20 = 127,032.40 : x
  2. Step 2: Convert to fraction form
    245,276.20/368,149.20 = 127,032.40/x
  3. Step 3: Cross multiply
    245,276.20x = 368,149.20 × 127,032.40
  4. Step 4: Simplify right side
    245,276.20x = 46,766,876,434.08
  5. Step 5: Solve for x
    x = 46,766,876,434.08/245,276.20
  6. Step 6: Final answer
    x = 190,670.26

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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.