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Finding the Fourth Proportional to 191,282.40, 264,020.40 and 134,719.20

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Solution

The fourth proportional to 191,282.40, 264,020.40 and 134,719.20 is: 185,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,282.40 : 264,020.40 = 134,719.20 : x
  2. Step 2: Convert to fraction form
    191,282.40/264,020.40 = 134,719.20/x
  3. Step 3: Cross multiply
    191,282.40x = 264,020.40 × 134,719.20
  4. Step 4: Simplify right side
    191,282.40x = 35,568,617,071.68
  5. Step 5: Solve for x
    x = 35,568,617,071.68/191,282.40
  6. Step 6: Final answer
    x = 185,948.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.