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Finding the Fourth Proportional to 92,905.36, 128,218.34 and 52,069.29

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Solution

The fourth proportional to 92,905.36, 128,218.34 and 52,069.29 is: 71,860.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,905.36 : 128,218.34 = 52,069.29 : x
  2. Step 2: Convert to fraction form
    92,905.36/128,218.34 = 52,069.29/x
  3. Step 3: Cross multiply
    92,905.36x = 128,218.34 × 52,069.29
  4. Step 4: Simplify right side
    92,905.36x = 6,676,238,058.95
  5. Step 5: Solve for x
    x = 6,676,238,058.95/92,905.36
  6. Step 6: Final answer
    x = 71,860.63

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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.