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Finding the Fourth Proportional to 355,522.86, 533,432.52 and 155,986.65

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Solution

The fourth proportional to 355,522.86, 533,432.52 and 155,986.65 is: 234,045.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,522.86 : 533,432.52 = 155,986.65 : x
  2. Step 2: Convert to fraction form
    355,522.86/533,432.52 = 155,986.65/x
  3. Step 3: Cross multiply
    355,522.86x = 533,432.52 × 155,986.65
  4. Step 4: Simplify right side
    355,522.86x = 83,208,351,795.86
  5. Step 5: Solve for x
    x = 83,208,351,795.86/355,522.86
  6. Step 6: Final answer
    x = 234,045.01

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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.