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Finding the Fourth Proportional to 165,455.91, 248,152.05 and 64,253.91

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Solution

The fourth proportional to 165,455.91, 248,152.05 and 64,253.91 is: 96,368.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,455.91 : 248,152.05 = 64,253.91 : x
  2. Step 2: Convert to fraction form
    165,455.91/248,152.05 = 64,253.91/x
  3. Step 3: Cross multiply
    165,455.91x = 248,152.05 × 64,253.91
  4. Step 4: Simplify right side
    165,455.91x = 15,944,739,487.02
  5. Step 5: Solve for x
    x = 15,944,739,487.02/165,455.91
  6. Step 6: Final answer
    x = 96,368.51

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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.