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Finding the Fourth Proportional to 116.49, 174.70 and 48.00

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Solution

The fourth proportional to 116.49, 174.70 and 48.00 is: 71.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.49 : 174.70 = 48.00 : x
  2. Step 2: Convert to fraction form
    116.49/174.70 = 48.00/x
  3. Step 3: Cross multiply
    116.49x = 174.70 × 48.00
  4. Step 4: Simplify right side
    116.49x = 8,386.32
  5. Step 5: Solve for x
    x = 8,386.32/116.49
  6. Step 6: Final answer
    x = 71.99

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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.