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Finding the Fourth Proportional to 165,797.60, 248,696.40 and 153,987.80

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Solution

The fourth proportional to 165,797.60, 248,696.40 and 153,987.80 is: 230,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,797.60 : 248,696.40 = 153,987.80 : x
  2. Step 2: Convert to fraction form
    165,797.60/248,696.40 = 153,987.80/x
  3. Step 3: Cross multiply
    165,797.60x = 248,696.40 × 153,987.80
  4. Step 4: Simplify right side
    165,797.60x = 38,296,211,503.92
  5. Step 5: Solve for x
    x = 38,296,211,503.92/165,797.60
  6. Step 6: Final answer
    x = 230,981.70

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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.