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Finding the Fourth Proportional to 100,853,441.80, 151,280,162.70 and 100,853,441.80

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Solution

The fourth proportional to 100,853,441.80, 151,280,162.70 and 100,853,441.80 is: 151,280,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,853,441.80 : 151,280,162.70 = 100,853,441.80 : x
  2. Step 2: Convert to fraction form
    100,853,441.80/151,280,162.70 = 100,853,441.80/x
  3. Step 3: Cross multiply
    100,853,441.80x = 151,280,162.70 × 100,853,441.80
  4. Step 4: Simplify right side
    100,853,441.80x = 15,257,125,084,358,980
  5. Step 5: Solve for x
    x = 15,257,125,084,358,980/100,853,441.80
  6. Step 6: Final answer
    x = 151,280,162.70

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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.