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Finding the Fourth Proportional to 136,275.92, 188,066.16 and 75,849.11

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Solution

The fourth proportional to 136,275.92, 188,066.16 and 75,849.11 is: 104,674.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,275.92 : 188,066.16 = 75,849.11 : x
  2. Step 2: Convert to fraction form
    136,275.92/188,066.16 = 75,849.11/x
  3. Step 3: Cross multiply
    136,275.92x = 188,066.16 × 75,849.11
  4. Step 4: Simplify right side
    136,275.92x = 14,264,649,916.79
  5. Step 5: Solve for x
    x = 14,264,649,916.79/136,275.92
  6. Step 6: Final answer
    x = 104,674.77

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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.