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Finding the Fourth Proportional to 341,788.74, 512,755.80 and 117,088.86

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Solution

The fourth proportional to 341,788.74, 512,755.80 and 117,088.86 is: 175,658.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,788.74 : 512,755.80 = 117,088.86 : x
  2. Step 2: Convert to fraction form
    341,788.74/512,755.80 = 117,088.86/x
  3. Step 3: Cross multiply
    341,788.74x = 512,755.80 × 117,088.86
  4. Step 4: Simplify right side
    341,788.74x = 60,037,992,080.39
  5. Step 5: Solve for x
    x = 60,037,992,080.39/341,788.74
  6. Step 6: Final answer
    x = 175,658.19

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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.