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Finding the Fourth Proportional to 116,611.20, 174,916.80 and 83,433.60

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Solution

The fourth proportional to 116,611.20, 174,916.80 and 83,433.60 is: 125,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,611.20 : 174,916.80 = 83,433.60 : x
  2. Step 2: Convert to fraction form
    116,611.20/174,916.80 = 83,433.60/x
  3. Step 3: Cross multiply
    116,611.20x = 174,916.80 × 83,433.60
  4. Step 4: Simplify right side
    116,611.20x = 14,593,938,324.48
  5. Step 5: Solve for x
    x = 14,593,938,324.48/116,611.20
  6. Step 6: Final answer
    x = 125,150.40

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1.5x scale

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.