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Finding the Fourth Proportional to 99,268.16, 136,990.62 and 53,946.52

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Solution

The fourth proportional to 99,268.16, 136,990.62 and 53,946.52 is: 74,446.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,268.16 : 136,990.62 = 53,946.52 : x
  2. Step 2: Convert to fraction form
    99,268.16/136,990.62 = 53,946.52/x
  3. Step 3: Cross multiply
    99,268.16x = 136,990.62 × 53,946.52
  4. Step 4: Simplify right side
    99,268.16x = 7,390,167,221.64
  5. Step 5: Solve for x
    x = 7,390,167,221.64/99,268.16
  6. Step 6: Final answer
    x = 74,446.50

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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.