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Finding the Fourth Proportional to 251,287.60, 376,931.40 and 248,663.20

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Solution

The fourth proportional to 251,287.60, 376,931.40 and 248,663.20 is: 372,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,287.60 : 376,931.40 = 248,663.20 : x
  2. Step 2: Convert to fraction form
    251,287.60/376,931.40 = 248,663.20/x
  3. Step 3: Cross multiply
    251,287.60x = 376,931.40 × 248,663.20
  4. Step 4: Simplify right side
    251,287.60x = 93,728,968,104.48
  5. Step 5: Solve for x
    x = 93,728,968,104.48/251,287.60
  6. Step 6: Final answer
    x = 372,994.80

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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.