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Finding the Fourth Proportional to 14,092,669.20, 19,687,221.60 and 14,092,669.20

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Solution

The fourth proportional to 14,092,669.20, 19,687,221.60 and 14,092,669.20 is: 19,687,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,092,669.20 : 19,687,221.60 = 14,092,669.20 : x
  2. Step 2: Convert to fraction form
    14,092,669.20/19,687,221.60 = 14,092,669.20/x
  3. Step 3: Cross multiply
    14,092,669.20x = 19,687,221.60 × 14,092,669.20
  4. Step 4: Simplify right side
    14,092,669.20x = 277,445,501,475,894.72
  5. Step 5: Solve for x
    x = 277,445,501,475,894.72/14,092,669.20
  6. Step 6: Final answer
    x = 19,687,221.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.