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Finding the Fourth Proportional to 191,009.79, 286,120.94 and 111,884.13

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Solution

The fourth proportional to 191,009.79, 286,120.94 and 111,884.13 is: 167,595.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,009.79 : 286,120.94 = 111,884.13 : x
  2. Step 2: Convert to fraction form
    191,009.79/286,120.94 = 111,884.13/x
  3. Step 3: Cross multiply
    191,009.79x = 286,120.94 × 111,884.13
  4. Step 4: Simplify right side
    191,009.79x = 32,012,391,887.26
  5. Step 5: Solve for x
    x = 32,012,391,887.26/191,009.79
  6. Step 6: Final answer
    x = 167,595.56

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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.