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Finding the Fourth Proportional to 205,062.60, 307,593.90 and 191,843.40

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Solution

The fourth proportional to 205,062.60, 307,593.90 and 191,843.40 is: 287,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,062.60 : 307,593.90 = 191,843.40 : x
  2. Step 2: Convert to fraction form
    205,062.60/307,593.90 = 191,843.40/x
  3. Step 3: Cross multiply
    205,062.60x = 307,593.90 × 191,843.40
  4. Step 4: Simplify right side
    205,062.60x = 59,009,859,595.26
  5. Step 5: Solve for x
    x = 59,009,859,595.26/205,062.60
  6. Step 6: Final answer
    x = 287,765.10

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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.