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Finding the Fourth Proportional to 117,603.56, 162,294.74 and 63,889.64

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Solution

The fourth proportional to 117,603.56, 162,294.74 and 63,889.64 is: 88,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,603.56 : 162,294.74 = 63,889.64 : x
  2. Step 2: Convert to fraction form
    117,603.56/162,294.74 = 63,889.64/x
  3. Step 3: Cross multiply
    117,603.56x = 162,294.74 × 63,889.64
  4. Step 4: Simplify right side
    117,603.56x = 10,368,952,512.49
  5. Step 5: Solve for x
    x = 10,368,952,512.49/117,603.56
  6. Step 6: Final answer
    x = 88,168.70

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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.