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Finding the Fourth Proportional to 207,591.87, 286,497.94 and 127,072.60

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Solution

The fourth proportional to 207,591.87, 286,497.94 and 127,072.60 is: 175,373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,591.87 : 286,497.94 = 127,072.60 : x
  2. Step 2: Convert to fraction form
    207,591.87/286,497.94 = 127,072.60/x
  3. Step 3: Cross multiply
    207,591.87x = 286,497.94 × 127,072.60
  4. Step 4: Simplify right side
    207,591.87x = 36,406,038,647.41
  5. Step 5: Solve for x
    x = 36,406,038,647.41/207,591.87
  6. Step 6: Final answer
    x = 175,373.15

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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.