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Finding the Fourth Proportional to 118,049.93, 162,904.16 and 64,333.79

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Solution

The fourth proportional to 118,049.93, 162,904.16 and 64,333.79 is: 88,778.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,049.93 : 162,904.16 = 64,333.79 : x
  2. Step 2: Convert to fraction form
    118,049.93/162,904.16 = 64,333.79/x
  3. Step 3: Cross multiply
    118,049.93x = 162,904.16 × 64,333.79
  4. Step 4: Simplify right side
    118,049.93x = 10,480,242,893.11
  5. Step 5: Solve for x
    x = 10,480,242,893.11/118,049.93
  6. Step 6: Final answer
    x = 88,778.05

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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.