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Finding the Fourth Proportional to 115,571.34, 173,368.08 and 45,434.25

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Solution

The fourth proportional to 115,571.34, 173,368.08 and 45,434.25 is: 68,155.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,571.34 : 173,368.08 = 45,434.25 : x
  2. Step 2: Convert to fraction form
    115,571.34/173,368.08 = 45,434.25/x
  3. Step 3: Cross multiply
    115,571.34x = 173,368.08 × 45,434.25
  4. Step 4: Simplify right side
    115,571.34x = 7,876,848,688.74
  5. Step 5: Solve for x
    x = 7,876,848,688.74/115,571.34
  6. Step 6: Final answer
    x = 68,155.73

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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.