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Finding the Fourth Proportional to 99,267.51, 136,990.50 and 53,946.39

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Solution

The fourth proportional to 99,267.51, 136,990.50 and 53,946.39 is: 74,446.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,267.51 : 136,990.50 = 53,946.39 : x
  2. Step 2: Convert to fraction form
    99,267.51/136,990.50 = 53,946.39/x
  3. Step 3: Cross multiply
    99,267.51x = 136,990.50 × 53,946.39
  4. Step 4: Simplify right side
    99,267.51x = 7,390,142,939.30
  5. Step 5: Solve for x
    x = 7,390,142,939.30/99,267.51
  6. Step 6: Final answer
    x = 74,446.74

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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.