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Finding the Fourth Proportional to 162,616.48, 243,923.32 and 127,107.63

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Solution

The fourth proportional to 162,616.48, 243,923.32 and 127,107.63 is: 190,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,616.48 : 243,923.32 = 127,107.63 : x
  2. Step 2: Convert to fraction form
    162,616.48/243,923.32 = 127,107.63/x
  3. Step 3: Cross multiply
    162,616.48x = 243,923.32 × 127,107.63
  4. Step 4: Simplify right side
    162,616.48x = 31,004,515,106.93
  5. Step 5: Solve for x
    x = 31,004,515,106.93/162,616.48
  6. Step 6: Final answer
    x = 190,660.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.