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Finding the Third Proportional to 128,124,519.19 and 191,347,188.89

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Solution

The third proportional to 128,124,519.19 and 191,347,188.89 is: 285,766,900.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,124,519.19 : 191,347,188.89 = 191,347,188.89 : x
  2. Step 2: Convert to fraction form
    128,124,519.19/191,347,188.89 = 191,347,188.89/x
  3. Step 3: Cross multiply
    128,124,519.19x = 191,347,188.89 × 191,347,188.89
  4. Step 4: Simplify right side
    128,124,519.19x = 36,613,746,696,342,608
  5. Step 5: Solve for x
    x = 36,613,746,696,342,608/128,124,519.19
  6. Step 6: Final answer
    x = 285,766,900.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.