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Finding the Fourth Proportional to 117,695.91, 162,423.54 and 63,984.54

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Solution

The fourth proportional to 117,695.91, 162,423.54 and 63,984.54 is: 88,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,695.91 : 162,423.54 = 63,984.54 : x
  2. Step 2: Convert to fraction form
    117,695.91/162,423.54 = 63,984.54/x
  3. Step 3: Cross multiply
    117,695.91x = 162,423.54 × 63,984.54
  4. Step 4: Simplify right side
    117,695.91x = 10,392,595,492.07
  5. Step 5: Solve for x
    x = 10,392,595,492.07/117,695.91
  6. Step 6: Final answer
    x = 88,300.40

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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.