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Finding the Fourth Proportional to 353,283.78, 529,913.18 and 100,565.60

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Solution

The fourth proportional to 353,283.78, 529,913.18 and 100,565.60 is: 150,844.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,283.78 : 529,913.18 = 100,565.60 : x
  2. Step 2: Convert to fraction form
    353,283.78/529,913.18 = 100,565.60/x
  3. Step 3: Cross multiply
    353,283.78x = 529,913.18 × 100,565.60
  4. Step 4: Simplify right side
    353,283.78x = 53,291,038,470.81
  5. Step 5: Solve for x
    x = 53,291,038,470.81/353,283.78
  6. Step 6: Final answer
    x = 150,844.85

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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.