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Finding the Third Proportional to 128,307,691.13 and 185,382,496.69

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Solution

The third proportional to 128,307,691.13 and 185,382,496.69 is: 267,845,752.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,307,691.13 : 185,382,496.69 = 185,382,496.69 : x
  2. Step 2: Convert to fraction form
    128,307,691.13/185,382,496.69 = 185,382,496.69/x
  3. Step 3: Cross multiply
    128,307,691.13x = 185,382,496.69 × 185,382,496.69
  4. Step 4: Simplify right side
    128,307,691.13x = 34,366,670,078,090,948
  5. Step 5: Solve for x
    x = 34,366,670,078,090,948/128,307,691.13
  6. Step 6: Final answer
    x = 267,845,752.48

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.