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Finding the Fourth Proportional to 98,109,793.80, 147,164,690.70 and 89,022,152.70

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Solution

The fourth proportional to 98,109,793.80, 147,164,690.70 and 89,022,152.70 is: 133,533,229.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,109,793.80 : 147,164,690.70 = 89,022,152.70 : x
  2. Step 2: Convert to fraction form
    98,109,793.80/147,164,690.70 = 89,022,152.70/x
  3. Step 3: Cross multiply
    98,109,793.80x = 147,164,690.70 × 89,022,152.70
  4. Step 4: Simplify right side
    98,109,793.80x = 13,100,917,567,543,670
  5. Step 5: Solve for x
    x = 13,100,917,567,543,670/98,109,793.80
  6. Step 6: Final answer
    x = 133,533,229.05

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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.