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Finding the Fourth Proportional to 113,746.59, 157,020.63 and 73,479.97

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Solution

The fourth proportional to 113,746.59, 157,020.63 and 73,479.97 is: 101,434.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,746.59 : 157,020.63 = 73,479.97 : x
  2. Step 2: Convert to fraction form
    113,746.59/157,020.63 = 73,479.97/x
  3. Step 3: Cross multiply
    113,746.59x = 157,020.63 × 73,479.97
  4. Step 4: Simplify right side
    113,746.59x = 11,537,870,814.38
  5. Step 5: Solve for x
    x = 11,537,870,814.38/113,746.59
  6. Step 6: Final answer
    x = 101,434.87

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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.