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Finding the Fourth Proportional to 164,620.60, 247,046.10 and 105,599.80

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Solution

The fourth proportional to 164,620.60, 247,046.10 and 105,599.80 is: 158,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,620.60 : 247,046.10 = 105,599.80 : x
  2. Step 2: Convert to fraction form
    164,620.60/247,046.10 = 105,599.80/x
  3. Step 3: Cross multiply
    164,620.60x = 247,046.10 × 105,599.80
  4. Step 4: Simplify right side
    164,620.60x = 26,088,018,750.78
  5. Step 5: Solve for x
    x = 26,088,018,750.78/164,620.60
  6. Step 6: Final answer
    x = 158,473.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.