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Finding the Fourth Proportional to 122,572.40, 169,169.60 and 114,567.98

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Solution

The fourth proportional to 122,572.40, 169,169.60 and 114,567.98 is: 158,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,572.40 : 169,169.60 = 114,567.98 : x
  2. Step 2: Convert to fraction form
    122,572.40/169,169.60 = 114,567.98/x
  3. Step 3: Cross multiply
    122,572.40x = 169,169.60 × 114,567.98
  4. Step 4: Simplify right side
    122,572.40x = 19,381,418,776.57
  5. Step 5: Solve for x
    x = 19,381,418,776.57/122,572.40
  6. Step 6: Final answer
    x = 158,122.21

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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.