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Finding the Fourth Proportional to 356,707.65, 535,055.31 and 120,050.33

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Solution

The fourth proportional to 356,707.65, 535,055.31 and 120,050.33 is: 180,073.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,707.65 : 535,055.31 = 120,050.33 : x
  2. Step 2: Convert to fraction form
    356,707.65/535,055.31 = 120,050.33/x
  3. Step 3: Cross multiply
    356,707.65x = 535,055.31 × 120,050.33
  4. Step 4: Simplify right side
    356,707.65x = 64,233,567,871.39
  5. Step 5: Solve for x
    x = 64,233,567,871.39/356,707.65
  6. Step 6: Final answer
    x = 180,073.42

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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.