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Finding the Fourth Proportional to 306,904.52, 423,549.52 and 186,050.90

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Solution

The fourth proportional to 306,904.52, 423,549.52 and 186,050.90 is: 256,763.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,904.52 : 423,549.52 = 186,050.90 : x
  2. Step 2: Convert to fraction form
    306,904.52/423,549.52 = 186,050.90/x
  3. Step 3: Cross multiply
    306,904.52x = 423,549.52 × 186,050.90
  4. Step 4: Simplify right side
    306,904.52x = 78,801,766,807.69
  5. Step 5: Solve for x
    x = 78,801,766,807.69/306,904.52
  6. Step 6: Final answer
    x = 256,763.14

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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.