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Finding the Fourth Proportional to 122,111,553.70, 171,409,671.50 and 122,111,553.70

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Solution

The fourth proportional to 122,111,553.70, 171,409,671.50 and 122,111,553.70 is: 171,409,671.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,111,553.70 : 171,409,671.50 = 122,111,553.70 : x
  2. Step 2: Convert to fraction form
    122,111,553.70/171,409,671.50 = 122,111,553.70/x
  3. Step 3: Cross multiply
    122,111,553.70x = 171,409,671.50 × 122,111,553.70
  4. Step 4: Simplify right side
    122,111,553.70x = 20,931,101,306,071,612
  5. Step 5: Solve for x
    x = 20,931,101,306,071,612/122,111,553.70
  6. Step 6: Final answer
    x = 171,409,671.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.