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Finding the Fourth Proportional to 108,543,609.90, 152,364,161.70 and 108,543,609.90

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Solution

The fourth proportional to 108,543,609.90, 152,364,161.70 and 108,543,609.90 is: 152,364,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,543,609.90 : 152,364,161.70 = 108,543,609.90 : x
  2. Step 2: Convert to fraction form
    108,543,609.90/152,364,161.70 = 108,543,609.90/x
  3. Step 3: Cross multiply
    108,543,609.90x = 152,364,161.70 × 108,543,609.90
  4. Step 4: Simplify right side
    108,543,609.90x = 16,538,156,130,305,320
  5. Step 5: Solve for x
    x = 16,538,156,130,305,320/108,543,609.90
  6. Step 6: Final answer
    x = 152,364,161.70

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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.