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Finding the Fourth Proportional to 191,068.16, 286,751.52 and 132,315.68

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Solution

The fourth proportional to 191,068.16, 286,751.52 and 132,315.68 is: 198,576.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,068.16 : 286,751.52 = 132,315.68 : x
  2. Step 2: Convert to fraction form
    191,068.16/286,751.52 = 132,315.68/x
  3. Step 3: Cross multiply
    191,068.16x = 286,751.52 × 132,315.68
  4. Step 4: Simplify right side
    191,068.16x = 37,941,722,359.83
  5. Step 5: Solve for x
    x = 37,941,722,359.83/191,068.16
  6. Step 6: Final answer
    x = 198,576.90

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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.