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Finding the Fourth Proportional to 354,731.60, 532,097.40 and 155,147.60

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Solution

The fourth proportional to 354,731.60, 532,097.40 and 155,147.60 is: 232,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,731.60 : 532,097.40 = 155,147.60 : x
  2. Step 2: Convert to fraction form
    354,731.60/532,097.40 = 155,147.60/x
  3. Step 3: Cross multiply
    354,731.60x = 532,097.40 × 155,147.60
  4. Step 4: Simplify right side
    354,731.60x = 82,553,634,576.24
  5. Step 5: Solve for x
    x = 82,553,634,576.24/354,731.60
  6. Step 6: Final answer
    x = 232,721.40

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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.