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Finding the Fourth Proportional to 176,815,745.20, 265,223,617.80 and 90,722,303.20

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Solution

The fourth proportional to 176,815,745.20, 265,223,617.80 and 90,722,303.20 is: 136,083,454.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,815,745.20 : 265,223,617.80 = 90,722,303.20 : x
  2. Step 2: Convert to fraction form
    176,815,745.20/265,223,617.80 = 90,722,303.20/x
  3. Step 3: Cross multiply
    176,815,745.20x = 265,223,617.80 × 90,722,303.20
  4. Step 4: Simplify right side
    176,815,745.20x = 24,061,697,469,852,520
  5. Step 5: Solve for x
    x = 24,061,697,469,852,520/176,815,745.20
  6. Step 6: Final answer
    x = 136,083,454.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.