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Finding the Third Proportional to 74,397,543 and 157,645,470

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Solution

The third proportional to 74,397,543 and 157,645,470 is: 334,044,555.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,397,543 : 157,645,470 = 157,645,470 : x
  2. Step 2: Convert to fraction form
    74,397,543/157,645,470 = 157,645,470/x
  3. Step 3: Cross multiply
    74,397,543x = 157,645,470 × 157,645,470
  4. Step 4: Simplify right side
    74,397,543x = 24,852,094,211,520,900
  5. Step 5: Solve for x
    x = 24,852,094,211,520,900/74,397,543
  6. Step 6: Final answer
    x = 334,044,555.90

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.