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Finding the Third Proportional to 61,921,920.66 and 86,616,829.83

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Solution

The third proportional to 61,921,920.66 and 86,616,829.83 is: 121,160,247.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,921,920.66 : 86,616,829.83 = 86,616,829.83 : x
  2. Step 2: Convert to fraction form
    61,921,920.66/86,616,829.83 = 86,616,829.83/x
  3. Step 3: Cross multiply
    61,921,920.66x = 86,616,829.83 × 86,616,829.83
  4. Step 4: Simplify right side
    61,921,920.66x = 7,502,475,209,474,192
  5. Step 5: Solve for x
    x = 7,502,475,209,474,192/61,921,920.66
  6. Step 6: Final answer
    x = 121,160,247.13

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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.