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Finding the Fourth Proportional to 92,911.34, 128,235.62 and 60,589.85

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Solution

The fourth proportional to 92,911.34, 128,235.62 and 60,589.85 is: 83,625.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,911.34 : 128,235.62 = 60,589.85 : x
  2. Step 2: Convert to fraction form
    92,911.34/128,235.62 = 60,589.85/x
  3. Step 3: Cross multiply
    92,911.34x = 128,235.62 × 60,589.85
  4. Step 4: Simplify right side
    92,911.34x = 7,769,776,980.46
  5. Step 5: Solve for x
    x = 7,769,776,980.46/92,911.34
  6. Step 6: Final answer
    x = 83,625.71

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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.