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Finding the Fourth Proportional to 120,124.80, 179,916.56 and 93,256.90

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Solution

The fourth proportional to 120,124.80, 179,916.56 and 93,256.90 is: 139,675.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,124.80 : 179,916.56 = 93,256.90 : x
  2. Step 2: Convert to fraction form
    120,124.80/179,916.56 = 93,256.90/x
  3. Step 3: Cross multiply
    120,124.80x = 179,916.56 × 93,256.90
  4. Step 4: Simplify right side
    120,124.80x = 16,778,460,644.26
  5. Step 5: Solve for x
    x = 16,778,460,644.26/120,124.80
  6. Step 6: Final answer
    x = 139,675.24

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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.