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Finding the Fourth Proportional to 117,506.16, 162,157.36 and 63,790

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Solution

The fourth proportional to 117,506.16, 162,157.36 and 63,790 is: 88,029.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,506.16 : 162,157.36 = 63,790 : x
  2. Step 2: Convert to fraction form
    117,506.16/162,157.36 = 63,790/x
  3. Step 3: Cross multiply
    117,506.16x = 162,157.36 × 63,790
  4. Step 4: Simplify right side
    117,506.16x = 10,344,017,994.40
  5. Step 5: Solve for x
    x = 10,344,017,994.40/117,506.16
  6. Step 6: Final answer
    x = 88,029.58

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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.