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Finding the Fourth Proportional to 191,029.56, 286,150.56 and 111,903.88

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Solution

The fourth proportional to 191,029.56, 286,150.56 and 111,903.88 is: 167,625.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,029.56 : 286,150.56 = 111,903.88 : x
  2. Step 2: Convert to fraction form
    191,029.56/286,150.56 = 111,903.88/x
  3. Step 3: Cross multiply
    191,029.56x = 286,150.56 × 111,903.88
  4. Step 4: Simplify right side
    191,029.56x = 32,021,357,928.17
  5. Step 5: Solve for x
    x = 32,021,357,928.17/191,029.56
  6. Step 6: Final answer
    x = 167,625.15

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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.