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Finding the Third Proportional to 74,221,920 and 153,535,176

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Solution

The third proportional to 74,221,920 and 153,535,176 is: 317,602,269.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,221,920 : 153,535,176 = 153,535,176 : x
  2. Step 2: Convert to fraction form
    74,221,920/153,535,176 = 153,535,176/x
  3. Step 3: Cross multiply
    74,221,920x = 153,535,176 × 153,535,176
  4. Step 4: Simplify right side
    74,221,920x = 23,573,050,269,350,976
  5. Step 5: Solve for x
    x = 23,573,050,269,350,976/74,221,920
  6. Step 6: Final answer
    x = 317,602,269.91

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.