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Finding the Fourth Proportional to 248,798.64, 343,329.72 and 141,354.48

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Solution

The fourth proportional to 248,798.64, 343,329.72 and 141,354.48 is: 195,062.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,798.64 : 343,329.72 = 141,354.48 : x
  2. Step 2: Convert to fraction form
    248,798.64/343,329.72 = 141,354.48/x
  3. Step 3: Cross multiply
    248,798.64x = 343,329.72 × 141,354.48
  4. Step 4: Simplify right side
    248,798.64x = 48,531,194,039.15
  5. Step 5: Solve for x
    x = 48,531,194,039.15/248,798.64
  6. Step 6: Final answer
    x = 195,062.14

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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.