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Finding the Fourth Proportional to 122,044.26, 168,406.68 and 70,360.78

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Solution

The fourth proportional to 122,044.26, 168,406.68 and 70,360.78 is: 97,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,044.26 : 168,406.68 = 70,360.78 : x
  2. Step 2: Convert to fraction form
    122,044.26/168,406.68 = 70,360.78/x
  3. Step 3: Cross multiply
    122,044.26x = 168,406.68 × 70,360.78
  4. Step 4: Simplify right side
    122,044.26x = 11,849,224,502.77
  5. Step 5: Solve for x
    x = 11,849,224,502.77/122,044.26
  6. Step 6: Final answer
    x = 97,089.57

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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.