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Finding the Fourth Proportional to 206,920.95, 310,598.61 and 183,379.11

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Solution

The fourth proportional to 206,920.95, 310,598.61 and 183,379.11 is: 275,261.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,920.95 : 310,598.61 = 183,379.11 : x
  2. Step 2: Convert to fraction form
    206,920.95/310,598.61 = 183,379.11/x
  3. Step 3: Cross multiply
    206,920.95x = 310,598.61 × 183,379.11
  4. Step 4: Simplify right side
    206,920.95x = 56,957,298,521.45
  5. Step 5: Solve for x
    x = 56,957,298,521.45/206,920.95
  6. Step 6: Final answer
    x = 275,261.14

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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.