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Finding the Fourth Proportional to 268,851.60, 403,496.10 and 260,103.60

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Solution

The fourth proportional to 268,851.60, 403,496.10 and 260,103.60 is: 390,366.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,851.60 : 403,496.10 = 260,103.60 : x
  2. Step 2: Convert to fraction form
    268,851.60/403,496.10 = 260,103.60/x
  3. Step 3: Cross multiply
    268,851.60x = 403,496.10 × 260,103.60
  4. Step 4: Simplify right side
    268,851.60x = 104,950,788,195.96
  5. Step 5: Solve for x
    x = 104,950,788,195.96/268,851.60
  6. Step 6: Final answer
    x = 390,366.98

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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.