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Finding the Third Proportional to 56,879,959.50 and 85,917,705.75

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Solution

The third proportional to 56,879,959.50 and 85,917,705.75 is: 129,779,490.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,879,959.50 : 85,917,705.75 = 85,917,705.75 : x
  2. Step 2: Convert to fraction form
    56,879,959.50/85,917,705.75 = 85,917,705.75/x
  3. Step 3: Cross multiply
    56,879,959.50x = 85,917,705.75 × 85,917,705.75
  4. Step 4: Simplify right side
    56,879,959.50x = 7,381,852,161,343,583
  5. Step 5: Solve for x
    x = 7,381,852,161,343,583/56,879,959.50
  6. Step 6: Final answer
    x = 129,779,490.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.