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Finding the Fourth Proportional to 122,364.01, 168,859.75 and 67,913.01

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Solution

The fourth proportional to 122,364.01, 168,859.75 and 67,913.01 is: 93,718.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,364.01 : 168,859.75 = 67,913.01 : x
  2. Step 2: Convert to fraction form
    122,364.01/168,859.75 = 67,913.01/x
  3. Step 3: Cross multiply
    122,364.01x = 168,859.75 × 67,913.01
  4. Step 4: Simplify right side
    122,364.01x = 11,467,773,890.35
  5. Step 5: Solve for x
    x = 11,467,773,890.35/122,364.01
  6. Step 6: Final answer
    x = 93,718.52

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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.