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Finding the Fourth Proportional to 98,496,104.80, 147,744,157.20 and 91,329,743.20

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Solution

The fourth proportional to 98,496,104.80, 147,744,157.20 and 91,329,743.20 is: 136,994,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,496,104.80 : 147,744,157.20 = 91,329,743.20 : x
  2. Step 2: Convert to fraction form
    98,496,104.80/147,744,157.20 = 91,329,743.20/x
  3. Step 3: Cross multiply
    98,496,104.80x = 147,744,157.20 × 91,329,743.20
  4. Step 4: Simplify right side
    98,496,104.80x = 13,493,435,936,376,430
  5. Step 5: Solve for x
    x = 13,493,435,936,376,430/98,496,104.80
  6. Step 6: Final answer
    x = 136,994,614.80

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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.