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Finding the Fourth Proportional to 181,707.40, 272,852.70 and 137,384.20

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Solution

The fourth proportional to 181,707.40, 272,852.70 and 137,384.20 is: 206,296.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,707.40 : 272,852.70 = 137,384.20 : x
  2. Step 2: Convert to fraction form
    181,707.40/272,852.70 = 137,384.20/x
  3. Step 3: Cross multiply
    181,707.40x = 272,852.70 × 137,384.20
  4. Step 4: Simplify right side
    181,707.40x = 37,485,649,907.34
  5. Step 5: Solve for x
    x = 37,485,649,907.34/181,707.40
  6. Step 6: Final answer
    x = 206,296.77

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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.