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Finding the Fourth Proportional to 129,125.98, 193,683.69 and 35,629.34

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Solution

The fourth proportional to 129,125.98, 193,683.69 and 35,629.34 is: 53,442.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,125.98 : 193,683.69 = 35,629.34 : x
  2. Step 2: Convert to fraction form
    129,125.98/193,683.69 = 35,629.34/x
  3. Step 3: Cross multiply
    129,125.98x = 193,683.69 × 35,629.34
  4. Step 4: Simplify right side
    129,125.98x = 6,900,822,043.46
  5. Step 5: Solve for x
    x = 6,900,822,043.46/129,125.98
  6. Step 6: Final answer
    x = 53,442.55

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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.