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Finding the Fourth Proportional to 404,618.60, 606,709.20 and 167,985.20

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Solution

The fourth proportional to 404,618.60, 606,709.20 and 167,985.20 is: 251,887.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,618.60 : 606,709.20 = 167,985.20 : x
  2. Step 2: Convert to fraction form
    404,618.60/606,709.20 = 167,985.20/x
  3. Step 3: Cross multiply
    404,618.60x = 606,709.20 × 167,985.20
  4. Step 4: Simplify right side
    404,618.60x = 101,918,166,303.84
  5. Step 5: Solve for x
    x = 101,918,166,303.84/404,618.60
  6. Step 6: Final answer
    x = 251,887.00

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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.