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Finding the Fourth Proportional to 118,051.93, 162,911.66 and 64,336.98

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Solution

The fourth proportional to 118,051.93, 162,911.66 and 64,336.98 is: 88,785.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,051.93 : 162,911.66 = 64,336.98 : x
  2. Step 2: Convert to fraction form
    118,051.93/162,911.66 = 64,336.98/x
  3. Step 3: Cross multiply
    118,051.93x = 162,911.66 × 64,336.98
  4. Step 4: Simplify right side
    118,051.93x = 10,481,244,500.42
  5. Step 5: Solve for x
    x = 10,481,244,500.42/118,051.93
  6. Step 6: Final answer
    x = 88,785.03

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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.