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Finding the Fourth Proportional to 103,673.05, 155,411.06 and 40,533.65

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Solution

The fourth proportional to 103,673.05, 155,411.06 and 40,533.65 is: 60,761.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,673.05 : 155,411.06 = 40,533.65 : x
  2. Step 2: Convert to fraction form
    103,673.05/155,411.06 = 40,533.65/x
  3. Step 3: Cross multiply
    103,673.05x = 155,411.06 × 40,533.65
  4. Step 4: Simplify right side
    103,673.05x = 6,299,377,512.17
  5. Step 5: Solve for x
    x = 6,299,377,512.17/103,673.05
  6. Step 6: Final answer
    x = 60,761.96

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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.