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Finding the Fourth Proportional to 207,270.60, 310,905.90 and 57,510.60

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Solution

The fourth proportional to 207,270.60, 310,905.90 and 57,510.60 is: 86,265.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,270.60 : 310,905.90 = 57,510.60 : x
  2. Step 2: Convert to fraction form
    207,270.60/310,905.90 = 57,510.60/x
  3. Step 3: Cross multiply
    207,270.60x = 310,905.90 × 57,510.60
  4. Step 4: Simplify right side
    207,270.60x = 17,880,384,852.54
  5. Step 5: Solve for x
    x = 17,880,384,852.54/207,270.60
  6. Step 6: Final answer
    x = 86,265.90

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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.