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Finding the Fourth Proportional to 248,681.08, 343,221.12 and 146,731.48

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Solution

The fourth proportional to 248,681.08, 343,221.12 and 146,731.48 is: 202,513.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,681.08 : 343,221.12 = 146,731.48 : x
  2. Step 2: Convert to fraction form
    248,681.08/343,221.12 = 146,731.48/x
  3. Step 3: Cross multiply
    248,681.08x = 343,221.12 × 146,731.48
  4. Step 4: Simplify right side
    248,681.08x = 50,361,342,904.86
  5. Step 5: Solve for x
    x = 50,361,342,904.86/248,681.08
  6. Step 6: Final answer
    x = 202,513.77

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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.