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Finding the Fourth Proportional to 191,009.54, 286,120.56 and 111,883.88

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Solution

The fourth proportional to 191,009.54, 286,120.56 and 111,883.88 is: 167,595.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,009.54 : 286,120.56 = 111,883.88 : x
  2. Step 2: Convert to fraction form
    191,009.54/286,120.56 = 111,883.88/x
  3. Step 3: Cross multiply
    191,009.54x = 286,120.56 × 111,883.88
  4. Step 4: Simplify right side
    191,009.54x = 32,012,278,400.57
  5. Step 5: Solve for x
    x = 32,012,278,400.57/191,009.54
  6. Step 6: Final answer
    x = 167,595.18

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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.