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Finding the Fourth Proportional to 333,145.60, 499,948.80 and 239,718.40

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Solution

The fourth proportional to 333,145.60, 499,948.80 and 239,718.40 is: 359,743.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,145.60 : 499,948.80 = 239,718.40 : x
  2. Step 2: Convert to fraction form
    333,145.60/499,948.80 = 239,718.40/x
  3. Step 3: Cross multiply
    333,145.60x = 499,948.80 × 239,718.40
  4. Step 4: Simplify right side
    333,145.60x = 119,846,926,417.92
  5. Step 5: Solve for x
    x = 119,846,926,417.92/333,145.60
  6. Step 6: Final answer
    x = 359,743.39

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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.