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Finding the Fourth Proportional to 122,279.90, 171,502.90 and 122,279.90

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Solution

The fourth proportional to 122,279.90, 171,502.90 and 122,279.90 is: 171,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,279.90 : 171,502.90 = 122,279.90 : x
  2. Step 2: Convert to fraction form
    122,279.90/171,502.90 = 122,279.90/x
  3. Step 3: Cross multiply
    122,279.90x = 171,502.90 × 122,279.90
  4. Step 4: Simplify right side
    122,279.90x = 20,971,357,461.71
  5. Step 5: Solve for x
    x = 20,971,357,461.71/122,279.90
  6. Step 6: Final answer
    x = 171,502.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.