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Finding the Fourth Proportional to 663,656.63, 995,488.58 and 165,020.63

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Solution

The fourth proportional to 663,656.63, 995,488.58 and 165,020.63 is: 247,531.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,656.63 : 995,488.58 = 165,020.63 : x
  2. Step 2: Convert to fraction form
    663,656.63/995,488.58 = 165,020.63/x
  3. Step 3: Cross multiply
    663,656.63x = 995,488.58 × 165,020.63
  4. Step 4: Simplify right side
    663,656.63x = 164,276,148,064.51
  5. Step 5: Solve for x
    x = 164,276,148,064.51/663,656.63
  6. Step 6: Final answer
    x = 247,531.84

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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.