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Finding the Fourth Proportional to 350,916.78, 526,320.20 and 114,257.86

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Solution

The fourth proportional to 350,916.78, 526,320.20 and 114,257.86 is: 171,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,916.78 : 526,320.20 = 114,257.86 : x
  2. Step 2: Convert to fraction form
    350,916.78/526,320.20 = 114,257.86/x
  3. Step 3: Cross multiply
    350,916.78x = 526,320.20 × 114,257.86
  4. Step 4: Simplify right side
    350,916.78x = 60,136,219,726.77
  5. Step 5: Solve for x
    x = 60,136,219,726.77/350,916.78
  6. Step 6: Final answer
    x = 171,368.89

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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.