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Finding the Fourth Proportional to 124,379.26, 171,648 and 70,673.38

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Solution

The fourth proportional to 124,379.26, 171,648 and 70,673.38 is: 97,531.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,379.26 : 171,648 = 70,673.38 : x
  2. Step 2: Convert to fraction form
    124,379.26/171,648 = 70,673.38/x
  3. Step 3: Cross multiply
    124,379.26x = 171,648 × 70,673.38
  4. Step 4: Simplify right side
    124,379.26x = 12,130,944,330.24
  5. Step 5: Solve for x
    x = 12,130,944,330.24/124,379.26
  6. Step 6: Final answer
    x = 97,531.89

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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.