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Finding the Fourth Proportional to 118,088.85, 177,087.51 and 39,181.89

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Solution

The fourth proportional to 118,088.85, 177,087.51 and 39,181.89 is: 58,757.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,088.85 : 177,087.51 = 39,181.89 : x
  2. Step 2: Convert to fraction form
    118,088.85/177,087.51 = 39,181.89/x
  3. Step 3: Cross multiply
    118,088.85x = 177,087.51 × 39,181.89
  4. Step 4: Simplify right side
    118,088.85x = 6,938,623,337.19
  5. Step 5: Solve for x
    x = 6,938,623,337.19/118,088.85
  6. Step 6: Final answer
    x = 58,757.65

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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.