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Finding the Third Proportional to 74,602,990 and 160,543,396

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Solution

The third proportional to 74,602,990 and 160,543,396 is: 345,484,571.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,602,990 : 160,543,396 = 160,543,396 : x
  2. Step 2: Convert to fraction form
    74,602,990/160,543,396 = 160,543,396/x
  3. Step 3: Cross multiply
    74,602,990x = 160,543,396 × 160,543,396
  4. Step 4: Simplify right side
    74,602,990x = 25,774,181,999,212,816
  5. Step 5: Solve for x
    x = 25,774,181,999,212,816/74,602,990
  6. Step 6: Final answer
    x = 345,484,571.05

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.