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Finding the Fourth Proportional to 162.95, 224.86 and 93

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Solution

The fourth proportional to 162.95, 224.86 and 93 is: 128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.95 : 224.86 = 93 : x
  2. Step 2: Convert to fraction form
    162.95/224.86 = 93/x
  3. Step 3: Cross multiply
    162.95x = 224.86 × 93
  4. Step 4: Simplify right side
    162.95x = 20,911.98
  5. Step 5: Solve for x
    x = 20,911.98/162.95
  6. Step 6: Final answer
    x = 128.33

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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.