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Finding the Fourth Proportional to 191,230.30, 286,954.80 and 132,108.40

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Solution

The fourth proportional to 191,230.30, 286,954.80 and 132,108.40 is: 198,238.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,230.30 : 286,954.80 = 132,108.40 : x
  2. Step 2: Convert to fraction form
    191,230.30/286,954.80 = 132,108.40/x
  3. Step 3: Cross multiply
    191,230.30x = 286,954.80 × 132,108.40
  4. Step 4: Simplify right side
    191,230.30x = 37,909,139,500.32
  5. Step 5: Solve for x
    x = 37,909,139,500.32/191,230.30
  6. Step 6: Final answer
    x = 198,238.14

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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.