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Finding the Fourth Proportional to 99,157.62, 136,838.52 and 53,836.02

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Solution

The fourth proportional to 99,157.62, 136,838.52 and 53,836.02 is: 74,294.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,157.62 : 136,838.52 = 53,836.02 : x
  2. Step 2: Convert to fraction form
    99,157.62/136,838.52 = 53,836.02/x
  3. Step 3: Cross multiply
    99,157.62x = 136,838.52 × 53,836.02
  4. Step 4: Simplify right side
    99,157.62x = 7,366,841,299.49
  5. Step 5: Solve for x
    x = 7,366,841,299.49/99,157.62
  6. Step 6: Final answer
    x = 74,294.25

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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.