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Finding the Fourth Proportional to 236,829.80, 355,244.70 and 148,356.20

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Solution

The fourth proportional to 236,829.80, 355,244.70 and 148,356.20 is: 222,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,829.80 : 355,244.70 = 148,356.20 : x
  2. Step 2: Convert to fraction form
    236,829.80/355,244.70 = 148,356.20/x
  3. Step 3: Cross multiply
    236,829.80x = 355,244.70 × 148,356.20
  4. Step 4: Simplify right side
    236,829.80x = 52,702,753,762.14
  5. Step 5: Solve for x
    x = 52,702,753,762.14/236,829.80
  6. Step 6: Final answer
    x = 222,534.30

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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.