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Finding the Fourth Proportional to 173,191.54, 239,009.01 and 105,192.92

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Solution

The fourth proportional to 173,191.54, 239,009.01 and 105,192.92 is: 145,169.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,191.54 : 239,009.01 = 105,192.92 : x
  2. Step 2: Convert to fraction form
    173,191.54/239,009.01 = 105,192.92/x
  3. Step 3: Cross multiply
    173,191.54x = 239,009.01 × 105,192.92
  4. Step 4: Simplify right side
    173,191.54x = 25,142,055,668.21
  5. Step 5: Solve for x
    x = 25,142,055,668.21/173,191.54
  6. Step 6: Final answer
    x = 145,169.08

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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.