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Finding the Fourth Proportional to 115,427.70, 173,141.55 and 101,603.70

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Solution

The fourth proportional to 115,427.70, 173,141.55 and 101,603.70 is: 152,405.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,427.70 : 173,141.55 = 101,603.70 : x
  2. Step 2: Convert to fraction form
    115,427.70/173,141.55 = 101,603.70/x
  3. Step 3: Cross multiply
    115,427.70x = 173,141.55 × 101,603.70
  4. Step 4: Simplify right side
    115,427.70x = 17,591,822,103.74
  5. Step 5: Solve for x
    x = 17,591,822,103.74/115,427.70
  6. Step 6: Final answer
    x = 152,405.55

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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.