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Finding the Fourth Proportional to 176,474.94, 243,496.08 and 99,987.36

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Solution

The fourth proportional to 176,474.94, 243,496.08 and 99,987.36 is: 137,960.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,474.94 : 243,496.08 = 99,987.36 : x
  2. Step 2: Convert to fraction form
    176,474.94/243,496.08 = 99,987.36/x
  3. Step 3: Cross multiply
    176,474.94x = 243,496.08 × 99,987.36
  4. Step 4: Simplify right side
    176,474.94x = 24,346,530,209.55
  5. Step 5: Solve for x
    x = 24,346,530,209.55/176,474.94
  6. Step 6: Final answer
    x = 137,960.27

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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.