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Finding the Fourth Proportional to 353,304.86, 529,957.66 and 142,944.62

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Solution

The fourth proportional to 353,304.86, 529,957.66 and 142,944.62 is: 214,417.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,304.86 : 529,957.66 = 142,944.62 : x
  2. Step 2: Convert to fraction form
    353,304.86/529,957.66 = 142,944.62/x
  3. Step 3: Cross multiply
    353,304.86x = 529,957.66 × 142,944.62
  4. Step 4: Simplify right side
    353,304.86x = 75,754,596,324.79
  5. Step 5: Solve for x
    x = 75,754,596,324.79/353,304.86
  6. Step 6: Final answer
    x = 214,417.08

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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.