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Finding the Third Proportional to 121,690,740,455 and 260,128,605,454

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Solution

The third proportional to 121,690,740,455 and 260,128,605,454 is: 556,056,205,447.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,690,740,455 : 260,128,605,454 = 260,128,605,454 : x
  2. Step 2: Convert to fraction form
    121,690,740,455/260,128,605,454 = 260,128,605,454/x
  3. Step 3: Cross multiply
    121,690,740,455x = 260,128,605,454 × 260,128,605,454
  4. Step 4: Simplify right side
    121,690,740,455x = 67,666,891,375,442,797,789,184
  5. Step 5: Solve for x
    x = 67,666,891,375,442,797,789,184/121,690,740,455
  6. Step 6: Final answer
    x = 556,056,205,447.00

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.