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Finding the Fourth Proportional to 99,190.53, 136,849.64 and 56,164.14

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Solution

The fourth proportional to 99,190.53, 136,849.64 and 56,164.14 is: 77,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,190.53 : 136,849.64 = 56,164.14 : x
  2. Step 2: Convert to fraction form
    99,190.53/136,849.64 = 56,164.14/x
  3. Step 3: Cross multiply
    99,190.53x = 136,849.64 × 56,164.14
  4. Step 4: Simplify right side
    99,190.53x = 7,686,042,059.09
  5. Step 5: Solve for x
    x = 7,686,042,059.09/99,190.53
  6. Step 6: Final answer
    x = 77,487.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.