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Finding the Fourth Proportional to 70,432.66, 105,653.85 and 26,058.43

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Solution

The fourth proportional to 70,432.66, 105,653.85 and 26,058.43 is: 39,089.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,432.66 : 105,653.85 = 26,058.43 : x
  2. Step 2: Convert to fraction form
    70,432.66/105,653.85 = 26,058.43/x
  3. Step 3: Cross multiply
    70,432.66x = 105,653.85 × 26,058.43
  4. Step 4: Simplify right side
    70,432.66x = 2,753,173,454.46
  5. Step 5: Solve for x
    x = 2,753,173,454.46/70,432.66
  6. Step 6: Final answer
    x = 39,089.44

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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.