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Finding the Fourth Proportional to 236,744.80, 355,117.20 and 148,271.20

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Solution

The fourth proportional to 236,744.80, 355,117.20 and 148,271.20 is: 222,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,744.80 : 355,117.20 = 148,271.20 : x
  2. Step 2: Convert to fraction form
    236,744.80/355,117.20 = 148,271.20/x
  3. Step 3: Cross multiply
    236,744.80x = 355,117.20 × 148,271.20
  4. Step 4: Simplify right side
    236,744.80x = 52,653,653,384.64
  5. Step 5: Solve for x
    x = 52,653,653,384.64/236,744.80
  6. Step 6: Final answer
    x = 222,406.80

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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.