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Finding the Fourth Proportional to 439,347.04, 659,020.56 and 158,798.68

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Solution

The fourth proportional to 439,347.04, 659,020.56 and 158,798.68 is: 238,198.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,347.04 : 659,020.56 = 158,798.68 : x
  2. Step 2: Convert to fraction form
    439,347.04/659,020.56 = 158,798.68/x
  3. Step 3: Cross multiply
    439,347.04x = 659,020.56 × 158,798.68
  4. Step 4: Simplify right side
    439,347.04x = 104,651,592,777.81
  5. Step 5: Solve for x
    x = 104,651,592,777.81/439,347.04
  6. Step 6: Final answer
    x = 238,198.02

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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.