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Finding the Fourth Proportional to 92,398.42, 127,509.80 and 52,112.09

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Solution

The fourth proportional to 92,398.42, 127,509.80 and 52,112.09 is: 71,914.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,398.42 : 127,509.80 = 52,112.09 : x
  2. Step 2: Convert to fraction form
    92,398.42/127,509.80 = 52,112.09/x
  3. Step 3: Cross multiply
    92,398.42x = 127,509.80 × 52,112.09
  4. Step 4: Simplify right side
    92,398.42x = 6,644,802,231.70
  5. Step 5: Solve for x
    x = 6,644,802,231.70/92,398.42
  6. Step 6: Final answer
    x = 71,914.68

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1.5x scale

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.