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Finding the Fourth Proportional to 298,529.64, 411,981.09 and 162,565.92

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Solution

The fourth proportional to 298,529.64, 411,981.09 and 162,565.92 is: 224,346.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,529.64 : 411,981.09 = 162,565.92 : x
  2. Step 2: Convert to fraction form
    298,529.64/411,981.09 = 162,565.92/x
  3. Step 3: Cross multiply
    298,529.64x = 411,981.09 × 162,565.92
  4. Step 4: Simplify right side
    298,529.64x = 66,974,084,918.45
  5. Step 5: Solve for x
    x = 66,974,084,918.45/298,529.64
  6. Step 6: Final answer
    x = 224,346.52

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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.