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Finding the Fourth Proportional to 248,833.60, 343,388.64 and 141,395.20

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Solution

The fourth proportional to 248,833.60, 343,388.64 and 141,395.20 is: 195,124.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,833.60 : 343,388.64 = 141,395.20 : x
  2. Step 2: Convert to fraction form
    248,833.60/343,388.64 = 141,395.20/x
  3. Step 3: Cross multiply
    248,833.60x = 343,388.64 × 141,395.20
  4. Step 4: Simplify right side
    248,833.60x = 48,553,505,430.53
  5. Step 5: Solve for x
    x = 48,553,505,430.53/248,833.60
  6. Step 6: Final answer
    x = 195,124.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.