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Finding the Fourth Proportional to 268,048.60, 402,044.10 and 71,056.60

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Solution

The fourth proportional to 268,048.60, 402,044.10 and 71,056.60 is: 106,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,048.60 : 402,044.10 = 71,056.60 : x
  2. Step 2: Convert to fraction form
    268,048.60/402,044.10 = 71,056.60/x
  3. Step 3: Cross multiply
    268,048.60x = 402,044.10 × 71,056.60
  4. Step 4: Simplify right side
    268,048.60x = 28,567,886,796.06
  5. Step 5: Solve for x
    x = 28,567,886,796.06/268,048.60
  6. Step 6: Final answer
    x = 106,577.27

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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.