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Finding the Fourth Proportional to 163,898.82, 226,190.79 and 99,374.23

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Solution

The fourth proportional to 163,898.82, 226,190.79 and 99,374.23 is: 137,142.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,898.82 : 226,190.79 = 99,374.23 : x
  2. Step 2: Convert to fraction form
    163,898.82/226,190.79 = 99,374.23/x
  3. Step 3: Cross multiply
    163,898.82x = 226,190.79 × 99,374.23
  4. Step 4: Simplify right side
    163,898.82x = 22,477,536,095.00
  5. Step 5: Solve for x
    x = 22,477,536,095.00/163,898.82
  6. Step 6: Final answer
    x = 137,142.76

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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.