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Finding the Fourth Proportional to 191,009.88, 286,243.08 and 140,694.24

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Solution

The fourth proportional to 191,009.88, 286,243.08 and 140,694.24 is: 210,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,009.88 : 286,243.08 = 140,694.24 : x
  2. Step 2: Convert to fraction form
    191,009.88/286,243.08 = 140,694.24/x
  3. Step 3: Cross multiply
    191,009.88x = 286,243.08 × 140,694.24
  4. Step 4: Simplify right side
    191,009.88x = 40,272,752,595.86
  5. Step 5: Solve for x
    x = 40,272,752,595.86/191,009.88
  6. Step 6: Final answer
    x = 210,841.20

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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.