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Finding the Fourth Proportional to 268,003.55, 369,845.64 and 147,152.68

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Solution

The fourth proportional to 268,003.55, 369,845.64 and 147,152.68 is: 203,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,003.55 : 369,845.64 = 147,152.68 : x
  2. Step 2: Convert to fraction form
    268,003.55/369,845.64 = 147,152.68/x
  3. Step 3: Cross multiply
    268,003.55x = 369,845.64 × 147,152.68
  4. Step 4: Simplify right side
    268,003.55x = 54,423,776,187.70
  5. Step 5: Solve for x
    x = 54,423,776,187.70/268,003.55
  6. Step 6: Final answer
    x = 203,071.10

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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.