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Finding the Fourth Proportional to 333,762.03, 500,643.02 and 221,661.20

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Solution

The fourth proportional to 333,762.03, 500,643.02 and 221,661.20 is: 332,491.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,762.03 : 500,643.02 = 221,661.20 : x
  2. Step 2: Convert to fraction form
    333,762.03/500,643.02 = 221,661.20/x
  3. Step 3: Cross multiply
    333,762.03x = 500,643.02 × 221,661.20
  4. Step 4: Simplify right side
    333,762.03x = 110,973,128,973.30
  5. Step 5: Solve for x
    x = 110,973,128,973.30/333,762.03
  6. Step 6: Final answer
    x = 332,491.77

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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.