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Finding the Fourth Proportional to 120,611.70, 180,917.55 and 41,717.70

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Solution

The fourth proportional to 120,611.70, 180,917.55 and 41,717.70 is: 62,576.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,611.70 : 180,917.55 = 41,717.70 : x
  2. Step 2: Convert to fraction form
    120,611.70/180,917.55 = 41,717.70/x
  3. Step 3: Cross multiply
    120,611.70x = 180,917.55 × 41,717.70
  4. Step 4: Simplify right side
    120,611.70x = 7,547,464,075.64
  5. Step 5: Solve for x
    x = 7,547,464,075.64/120,611.70
  6. Step 6: Final answer
    x = 62,576.55

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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.