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Finding the Fourth Proportional to 122,590.88, 169,175.58 and 68,875.94

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Solution

The fourth proportional to 122,590.88, 169,175.58 and 68,875.94 is: 95,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,590.88 : 169,175.58 = 68,875.94 : x
  2. Step 2: Convert to fraction form
    122,590.88/169,175.58 = 68,875.94/x
  3. Step 3: Cross multiply
    122,590.88x = 169,175.58 × 68,875.94
  4. Step 4: Simplify right side
    122,590.88x = 11,652,127,097.55
  5. Step 5: Solve for x
    x = 11,652,127,097.55/122,590.88
  6. Step 6: Final answer
    x = 95,048.89

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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.