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Finding the Fourth Proportional to 191,063.15, 286,601.10 and 85,882.42

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Solution

The fourth proportional to 191,063.15, 286,601.10 and 85,882.42 is: 128,826.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,063.15 : 286,601.10 = 85,882.42 : x
  2. Step 2: Convert to fraction form
    191,063.15/286,601.10 = 85,882.42/x
  3. Step 3: Cross multiply
    191,063.15x = 286,601.10 × 85,882.42
  4. Step 4: Simplify right side
    191,063.15x = 24,613,995,326.16
  5. Step 5: Solve for x
    x = 24,613,995,326.16/191,063.15
  6. Step 6: Final answer
    x = 128,826.50

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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.