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Finding the Fourth Proportional to 355,958.86, 533,878.75 and 156,225.61

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Solution

The fourth proportional to 355,958.86, 533,878.75 and 156,225.61 is: 234,312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,958.86 : 533,878.75 = 156,225.61 : x
  2. Step 2: Convert to fraction form
    355,958.86/533,878.75 = 156,225.61/x
  3. Step 3: Cross multiply
    355,958.86x = 533,878.75 × 156,225.61
  4. Step 4: Simplify right side
    355,958.86x = 83,405,532,603.66
  5. Step 5: Solve for x
    x = 83,405,532,603.66/355,958.86
  6. Step 6: Final answer
    x = 234,312.28

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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.