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Finding the Fourth Proportional to 333,047.60, 499,571.40 and 108,429.20

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Solution

The fourth proportional to 333,047.60, 499,571.40 and 108,429.20 is: 162,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,047.60 : 499,571.40 = 108,429.20 : x
  2. Step 2: Convert to fraction form
    333,047.60/499,571.40 = 108,429.20/x
  3. Step 3: Cross multiply
    333,047.60x = 499,571.40 × 108,429.20
  4. Step 4: Simplify right side
    333,047.60x = 54,168,127,244.88
  5. Step 5: Solve for x
    x = 54,168,127,244.88/333,047.60
  6. Step 6: Final answer
    x = 162,643.80

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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.