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Finding the Fourth Proportional to 165,894.40, 248,724.96 and 77,053.60

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Solution

The fourth proportional to 165,894.40, 248,724.96 and 77,053.60 is: 115,526.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,894.40 : 248,724.96 = 77,053.60 : x
  2. Step 2: Convert to fraction form
    165,894.40/248,724.96 = 77,053.60/x
  3. Step 3: Cross multiply
    165,894.40x = 248,724.96 × 77,053.60
  4. Step 4: Simplify right side
    165,894.40x = 19,165,153,577.86
  5. Step 5: Solve for x
    x = 19,165,153,577.86/165,894.40
  6. Step 6: Final answer
    x = 115,526.22

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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.