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Finding the Fourth Proportional to 92,185.90, 127,208.34 and 51,346.90

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Solution

The fourth proportional to 92,185.90, 127,208.34 and 51,346.90 is: 70,854.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,185.90 : 127,208.34 = 51,346.90 : x
  2. Step 2: Convert to fraction form
    92,185.90/127,208.34 = 51,346.90/x
  3. Step 3: Cross multiply
    92,185.90x = 127,208.34 × 51,346.90
  4. Step 4: Simplify right side
    92,185.90x = 6,531,753,913.15
  5. Step 5: Solve for x
    x = 6,531,753,913.15/92,185.90
  6. Step 6: Final answer
    x = 70,854.15

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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.