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Finding the Fourth Proportional to 186,379.74, 257,206.98 and 101,496.72

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Solution

The fourth proportional to 186,379.74, 257,206.98 and 101,496.72 is: 140,067.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,379.74 : 257,206.98 = 101,496.72 : x
  2. Step 2: Convert to fraction form
    186,379.74/257,206.98 = 101,496.72/x
  3. Step 3: Cross multiply
    186,379.74x = 257,206.98 × 101,496.72
  4. Step 4: Simplify right side
    186,379.74x = 26,105,664,831.11
  5. Step 5: Solve for x
    x = 26,105,664,831.11/186,379.74
  6. Step 6: Final answer
    x = 140,067.07

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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.