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Finding the Fourth Proportional to 355,154.80, 533,034.60 and 144,943.60

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Solution

The fourth proportional to 355,154.80, 533,034.60 and 144,943.60 is: 217,538.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,154.80 : 533,034.60 = 144,943.60 : x
  2. Step 2: Convert to fraction form
    355,154.80/533,034.60 = 144,943.60/x
  3. Step 3: Cross multiply
    355,154.80x = 533,034.60 × 144,943.60
  4. Step 4: Simplify right side
    355,154.80x = 77,259,953,848.56
  5. Step 5: Solve for x
    x = 77,259,953,848.56/355,154.80
  6. Step 6: Final answer
    x = 217,538.81

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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.