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Finding the Fourth Proportional to 117,488.55, 162,060.30 and 69,708

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Solution

The fourth proportional to 117,488.55, 162,060.30 and 69,708 is: 96,153.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,488.55 : 162,060.30 = 69,708 : x
  2. Step 2: Convert to fraction form
    117,488.55/162,060.30 = 69,708/x
  3. Step 3: Cross multiply
    117,488.55x = 162,060.30 × 69,708
  4. Step 4: Simplify right side
    117,488.55x = 11,296,899,392.40
  5. Step 5: Solve for x
    x = 11,296,899,392.40/117,488.55
  6. Step 6: Final answer
    x = 96,153.19

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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.