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Finding the Fourth Proportional to 268,302.80, 403,231.80 and 234,088.40

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Solution

The fourth proportional to 268,302.80, 403,231.80 and 234,088.40 is: 351,811.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,302.80 : 403,231.80 = 234,088.40 : x
  2. Step 2: Convert to fraction form
    268,302.80/403,231.80 = 234,088.40/x
  3. Step 3: Cross multiply
    268,302.80x = 403,231.80 × 234,088.40
  4. Step 4: Simplify right side
    268,302.80x = 94,391,886,891.12
  5. Step 5: Solve for x
    x = 94,391,886,891.12/268,302.80
  6. Step 6: Final answer
    x = 351,811.04

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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.