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Finding the Fourth Proportional to 117,472.83, 162,108.38 and 63,756.77

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Solution

The fourth proportional to 117,472.83, 162,108.38 and 63,756.77 is: 87,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,472.83 : 162,108.38 = 63,756.77 : x
  2. Step 2: Convert to fraction form
    117,472.83/162,108.38 = 63,756.77/x
  3. Step 3: Cross multiply
    117,472.83x = 162,108.38 × 63,756.77
  4. Step 4: Simplify right side
    117,472.83x = 10,335,506,047.58
  5. Step 5: Solve for x
    x = 10,335,506,047.58/117,472.83
  6. Step 6: Final answer
    x = 87,982.10

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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.