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Finding the Fourth Proportional to 292,004.20, 437,973.90 and 239,321.80

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Solution

The fourth proportional to 292,004.20, 437,973.90 and 239,321.80 is: 358,956.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,004.20 : 437,973.90 = 239,321.80 : x
  2. Step 2: Convert to fraction form
    292,004.20/437,973.90 = 239,321.80/x
  3. Step 3: Cross multiply
    292,004.20x = 437,973.90 × 239,321.80
  4. Step 4: Simplify right side
    292,004.20x = 104,816,702,101.02
  5. Step 5: Solve for x
    x = 104,816,702,101.02/292,004.20
  6. Step 6: Final answer
    x = 358,956.15

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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.