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Finding the Fourth Proportional to 165,762.40, 248,773.20 and 77,026.90

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Solution

The fourth proportional to 165,762.40, 248,773.20 and 77,026.90 is: 115,600.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,762.40 : 248,773.20 = 77,026.90 : x
  2. Step 2: Convert to fraction form
    165,762.40/248,773.20 = 77,026.90/x
  3. Step 3: Cross multiply
    165,762.40x = 248,773.20 × 77,026.90
  4. Step 4: Simplify right side
    165,762.40x = 19,162,228,399.08
  5. Step 5: Solve for x
    x = 19,162,228,399.08/165,762.40
  6. Step 6: Final answer
    x = 115,600.57

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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.