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Finding the Fourth Proportional to 117,475.45, 162,116.28 and 63,760.45

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Solution

The fourth proportional to 117,475.45, 162,116.28 and 63,760.45 is: 87,989.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,475.45 : 162,116.28 = 63,760.45 : x
  2. Step 2: Convert to fraction form
    117,475.45/162,116.28 = 63,760.45/x
  3. Step 3: Cross multiply
    117,475.45x = 162,116.28 × 63,760.45
  4. Step 4: Simplify right side
    117,475.45x = 10,336,606,646.32
  5. Step 5: Solve for x
    x = 10,336,606,646.32/117,475.45
  6. Step 6: Final answer
    x = 87,989.51

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1.5x scale

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.