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Finding the Fourth Proportional to 63,828,774.66, 95,737,178.55 and 20,698,351.74

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Solution

The fourth proportional to 63,828,774.66, 95,737,178.55 and 20,698,351.74 is: 31,045,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,828,774.66 : 95,737,178.55 = 20,698,351.74 : x
  2. Step 2: Convert to fraction form
    63,828,774.66/95,737,178.55 = 20,698,351.74/x
  3. Step 3: Cross multiply
    63,828,774.66x = 95,737,178.55 × 20,698,351.74
  4. Step 4: Simplify right side
    63,828,774.66x = 1,981,601,796,223,083
  5. Step 5: Solve for x
    x = 1,981,601,796,223,083/63,828,774.66
  6. Step 6: Final answer
    x = 31,045,587.30

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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.