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Finding the Fourth Proportional to 343,461.30, 515,186.55 and 94,143.30

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Solution

The fourth proportional to 343,461.30, 515,186.55 and 94,143.30 is: 141,213.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,461.30 : 515,186.55 = 94,143.30 : x
  2. Step 2: Convert to fraction form
    343,461.30/515,186.55 = 94,143.30/x
  3. Step 3: Cross multiply
    343,461.30x = 515,186.55 × 94,143.30
  4. Step 4: Simplify right side
    343,461.30x = 48,501,361,932.62
  5. Step 5: Solve for x
    x = 48,501,361,932.62/343,461.30
  6. Step 6: Final answer
    x = 141,213.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.