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Finding the Third Proportional to 66,090,218 and 143,160,148

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Solution

The third proportional to 66,090,218 and 143,160,148 is: 310,103,803.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,090,218 : 143,160,148 = 143,160,148 : x
  2. Step 2: Convert to fraction form
    66,090,218/143,160,148 = 143,160,148/x
  3. Step 3: Cross multiply
    66,090,218x = 143,160,148 × 143,160,148
  4. Step 4: Simplify right side
    66,090,218x = 20,494,827,975,381,904
  5. Step 5: Solve for x
    x = 20,494,827,975,381,904/66,090,218
  6. Step 6: Final answer
    x = 310,103,803.49

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.