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Finding the Fourth Proportional to 117,663.45, 176,423.95 and 47,460.75

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Solution

The fourth proportional to 117,663.45, 176,423.95 and 47,460.75 is: 71,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,663.45 : 176,423.95 = 47,460.75 : x
  2. Step 2: Convert to fraction form
    117,663.45/176,423.95 = 47,460.75/x
  3. Step 3: Cross multiply
    117,663.45x = 176,423.95 × 47,460.75
  4. Step 4: Simplify right side
    117,663.45x = 8,373,212,984.96
  5. Step 5: Solve for x
    x = 8,373,212,984.96/117,663.45
  6. Step 6: Final answer
    x = 71,162.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.