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Finding the Fourth Proportional to 403,136.60, 604,923.60 and 166,503.20

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Solution

The fourth proportional to 403,136.60, 604,923.60 and 166,503.20 is: 249,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,136.60 : 604,923.60 = 166,503.20 : x
  2. Step 2: Convert to fraction form
    403,136.60/604,923.60 = 166,503.20/x
  3. Step 3: Cross multiply
    403,136.60x = 604,923.60 × 166,503.20
  4. Step 4: Simplify right side
    403,136.60x = 100,721,715,155.52
  5. Step 5: Solve for x
    x = 100,721,715,155.52/403,136.60
  6. Step 6: Final answer
    x = 249,845.13

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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.