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Finding the Fourth Proportional to 353,023.64, 487,175.60 and 191,878.66

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Solution

The fourth proportional to 353,023.64, 487,175.60 and 191,878.66 is: 264,794.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,023.64 : 487,175.60 = 191,878.66 : x
  2. Step 2: Convert to fraction form
    353,023.64/487,175.60 = 191,878.66/x
  3. Step 3: Cross multiply
    353,023.64x = 487,175.60 × 191,878.66
  4. Step 4: Simplify right side
    353,023.64x = 93,478,601,312.70
  5. Step 5: Solve for x
    x = 93,478,601,312.70/353,023.64
  6. Step 6: Final answer
    x = 264,794.17

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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.