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Finding the Fourth Proportional to 191,401.02, 287,101.62 and 86,096.96

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Solution

The fourth proportional to 191,401.02, 287,101.62 and 86,096.96 is: 129,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,401.02 : 287,101.62 = 86,096.96 : x
  2. Step 2: Convert to fraction form
    191,401.02/287,101.62 = 86,096.96/x
  3. Step 3: Cross multiply
    191,401.02x = 287,101.62 × 86,096.96
  4. Step 4: Simplify right side
    191,401.02x = 24,718,576,693.08
  5. Step 5: Solve for x
    x = 24,718,576,693.08/191,401.02
  6. Step 6: Final answer
    x = 129,145.48

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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.