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Finding the Fourth Proportional to 268,016.60, 402,024.90 and 253,501.40

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Solution

The fourth proportional to 268,016.60, 402,024.90 and 253,501.40 is: 380,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,016.60 : 402,024.90 = 253,501.40 : x
  2. Step 2: Convert to fraction form
    268,016.60/402,024.90 = 253,501.40/x
  3. Step 3: Cross multiply
    268,016.60x = 402,024.90 × 253,501.40
  4. Step 4: Simplify right side
    268,016.60x = 101,913,874,984.86
  5. Step 5: Solve for x
    x = 101,913,874,984.86/268,016.60
  6. Step 6: Final answer
    x = 380,252.10

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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.