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Finding the Fourth Proportional to 206,726.70, 310,090.05 and 56,966.70

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Solution

The fourth proportional to 206,726.70, 310,090.05 and 56,966.70 is: 85,450.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,726.70 : 310,090.05 = 56,966.70 : x
  2. Step 2: Convert to fraction form
    206,726.70/310,090.05 = 56,966.70/x
  3. Step 3: Cross multiply
    206,726.70x = 310,090.05 × 56,966.70
  4. Step 4: Simplify right side
    206,726.70x = 17,664,806,851.34
  5. Step 5: Solve for x
    x = 17,664,806,851.34/206,726.70
  6. Step 6: Final answer
    x = 85,450.05

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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.