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Finding the Fourth Proportional to 191,247.40, 286,871.10 and 160,834.60

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Solution

The fourth proportional to 191,247.40, 286,871.10 and 160,834.60 is: 241,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,247.40 : 286,871.10 = 160,834.60 : x
  2. Step 2: Convert to fraction form
    191,247.40/286,871.10 = 160,834.60/x
  3. Step 3: Cross multiply
    191,247.40x = 286,871.10 × 160,834.60
  4. Step 4: Simplify right side
    191,247.40x = 46,138,798,620.06
  5. Step 5: Solve for x
    x = 46,138,798,620.06/191,247.40
  6. Step 6: Final answer
    x = 241,251.90

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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.