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Finding the Fourth Proportional to 191,452.69, 286,553.01 and 140,838.22

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Solution

The fourth proportional to 191,452.69, 286,553.01 and 140,838.22 is: 210,796.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,452.69 : 286,553.01 = 140,838.22 : x
  2. Step 2: Convert to fraction form
    191,452.69/286,553.01 = 140,838.22/x
  3. Step 3: Cross multiply
    191,452.69x = 286,553.01 × 140,838.22
  4. Step 4: Simplify right side
    191,452.69x = 40,357,615,864.04
  5. Step 5: Solve for x
    x = 40,357,615,864.04/191,452.69
  6. Step 6: Final answer
    x = 210,796.81

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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.