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Finding the Fourth Proportional to 248,528.16, 342,978.57 and 141,108.20

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Solution

The fourth proportional to 248,528.16, 342,978.57 and 141,108.20 is: 194,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,528.16 : 342,978.57 = 141,108.20 : x
  2. Step 2: Convert to fraction form
    248,528.16/342,978.57 = 141,108.20/x
  3. Step 3: Cross multiply
    248,528.16x = 342,978.57 × 141,108.20
  4. Step 4: Simplify right side
    248,528.16x = 48,397,086,936.38
  5. Step 5: Solve for x
    x = 48,397,086,936.38/248,528.16
  6. Step 6: Final answer
    x = 194,734.82

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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.