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Finding the Fourth Proportional to 332,648.80, 498,973.20 and 122,259.40

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Solution

The fourth proportional to 332,648.80, 498,973.20 and 122,259.40 is: 183,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,648.80 : 498,973.20 = 122,259.40 : x
  2. Step 2: Convert to fraction form
    332,648.80/498,973.20 = 122,259.40/x
  3. Step 3: Cross multiply
    332,648.80x = 498,973.20 × 122,259.40
  4. Step 4: Simplify right side
    332,648.80x = 61,004,164,048.08
  5. Step 5: Solve for x
    x = 61,004,164,048.08/332,648.80
  6. Step 6: Final answer
    x = 183,389.10

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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.