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Finding the Fourth Proportional to 355,140.10, 532,710.15 and 222,429.70

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Solution

The fourth proportional to 355,140.10, 532,710.15 and 222,429.70 is: 333,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,140.10 : 532,710.15 = 222,429.70 : x
  2. Step 2: Convert to fraction form
    355,140.10/532,710.15 = 222,429.70/x
  3. Step 3: Cross multiply
    355,140.10x = 532,710.15 × 222,429.70
  4. Step 4: Simplify right side
    355,140.10x = 118,490,558,851.46
  5. Step 5: Solve for x
    x = 118,490,558,851.46/355,140.10
  6. Step 6: Final answer
    x = 333,644.55

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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.