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Finding the Fourth Proportional to 406,620.15, 609,730.32 and 166,669.02

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Solution

The fourth proportional to 406,620.15, 609,730.32 and 166,669.02 is: 249,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,620.15 : 609,730.32 = 166,669.02 : x
  2. Step 2: Convert to fraction form
    406,620.15/609,730.32 = 166,669.02/x
  3. Step 3: Cross multiply
    406,620.15x = 609,730.32 × 166,669.02
  4. Step 4: Simplify right side
    406,620.15x = 101,623,154,898.69
  5. Step 5: Solve for x
    x = 101,623,154,898.69/406,620.15
  6. Step 6: Final answer
    x = 249,921.59

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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.