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Finding the Fourth Proportional to 129,775.70, 194,663.55 and 41,056.40

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Solution

The fourth proportional to 129,775.70, 194,663.55 and 41,056.40 is: 61,584.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,775.70 : 194,663.55 = 41,056.40 : x
  2. Step 2: Convert to fraction form
    129,775.70/194,663.55 = 41,056.40/x
  3. Step 3: Cross multiply
    129,775.70x = 194,663.55 × 41,056.40
  4. Step 4: Simplify right side
    129,775.70x = 7,992,184,574.22
  5. Step 5: Solve for x
    x = 7,992,184,574.22/129,775.70
  6. Step 6: Final answer
    x = 61,584.60

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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.