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Finding the Fourth Proportional to 353,001.60, 487,142.28 and 191,856.69

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Solution

The fourth proportional to 353,001.60, 487,142.28 and 191,856.69 is: 264,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,001.60 : 487,142.28 = 191,856.69 : x
  2. Step 2: Convert to fraction form
    353,001.60/487,142.28 = 191,856.69/x
  3. Step 3: Cross multiply
    353,001.60x = 487,142.28 × 191,856.69
  4. Step 4: Simplify right side
    353,001.60x = 93,461,505,399.85
  5. Step 5: Solve for x
    x = 93,461,505,399.85/353,001.60
  6. Step 6: Final answer
    x = 264,762.27

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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.