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Finding the Fourth Proportional to 94.56, 141.80 and 93

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Solution

The fourth proportional to 94.56, 141.80 and 93 is: 139.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.56 : 141.80 = 93 : x
  2. Step 2: Convert to fraction form
    94.56/141.80 = 93/x
  3. Step 3: Cross multiply
    94.56x = 141.80 × 93
  4. Step 4: Simplify right side
    94.56x = 13,187.40
  5. Step 5: Solve for x
    x = 13,187.40/94.56
  6. Step 6: Final answer
    x = 139.46

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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.