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Finding the Fourth Proportional to 276,502,661.80, 414,753,992.70 and 173,934,111.40

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Solution

The fourth proportional to 276,502,661.80, 414,753,992.70 and 173,934,111.40 is: 260,901,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,502,661.80 : 414,753,992.70 = 173,934,111.40 : x
  2. Step 2: Convert to fraction form
    276,502,661.80/414,753,992.70 = 173,934,111.40/x
  3. Step 3: Cross multiply
    276,502,661.80x = 414,753,992.70 × 173,934,111.40
  4. Step 4: Simplify right side
    276,502,661.80x = 72,139,867,169,876,592
  5. Step 5: Solve for x
    x = 72,139,867,169,876,592/276,502,661.80
  6. Step 6: Final answer
    x = 260,901,167.10

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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.