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Finding the Fourth Proportional to 162,404.64, 243,355.68 and 112,582.08

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Solution

The fourth proportional to 162,404.64, 243,355.68 and 112,582.08 is: 168,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,404.64 : 243,355.68 = 112,582.08 : x
  2. Step 2: Convert to fraction form
    162,404.64/243,355.68 = 112,582.08/x
  3. Step 3: Cross multiply
    162,404.64x = 243,355.68 × 112,582.08
  4. Step 4: Simplify right side
    162,404.64x = 27,397,488,634.21
  5. Step 5: Solve for x
    x = 27,397,488,634.21/162,404.64
  6. Step 6: Final answer
    x = 168,698.93

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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.