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Finding the Fourth Proportional to 248,630.66, 343,151.89 and 146,681.40

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Solution

The fourth proportional to 248,630.66, 343,151.89 and 146,681.40 is: 202,444.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,630.66 : 343,151.89 = 146,681.40 : x
  2. Step 2: Convert to fraction form
    248,630.66/343,151.89 = 146,681.40/x
  3. Step 3: Cross multiply
    248,630.66x = 343,151.89 × 146,681.40
  4. Step 4: Simplify right side
    248,630.66x = 50,333,999,452.82
  5. Step 5: Solve for x
    x = 50,333,999,452.82/248,630.66
  6. Step 6: Final answer
    x = 202,444.86

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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.