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Finding the Fourth Proportional to 355,568.76, 533,353.67 and 145,206.71

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Solution

The fourth proportional to 355,568.76, 533,353.67 and 145,206.71 is: 217,810.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,568.76 : 533,353.67 = 145,206.71 : x
  2. Step 2: Convert to fraction form
    355,568.76/533,353.67 = 145,206.71/x
  3. Step 3: Cross multiply
    355,568.76x = 533,353.67 × 145,206.71
  4. Step 4: Simplify right side
    355,568.76x = 77,446,528,294.32
  5. Step 5: Solve for x
    x = 77,446,528,294.32/355,568.76
  6. Step 6: Final answer
    x = 217,810.27

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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.