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Finding the Fourth Proportional to 403,437.60, 604,937.70 and 166,512.60

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Solution

The fourth proportional to 403,437.60, 604,937.70 and 166,512.60 is: 249,678.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,437.60 : 604,937.70 = 166,512.60 : x
  2. Step 2: Convert to fraction form
    403,437.60/604,937.70 = 166,512.60/x
  3. Step 3: Cross multiply
    403,437.60x = 604,937.70 × 166,512.60
  4. Step 4: Simplify right side
    403,437.60x = 100,729,749,265.02
  5. Step 5: Solve for x
    x = 100,729,749,265.02/403,437.60
  6. Step 6: Final answer
    x = 249,678.63

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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.