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Finding the Fourth Proportional to 115,603.40, 173,409.90 and 36,715.40

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Solution

The fourth proportional to 115,603.40, 173,409.90 and 36,715.40 is: 55,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,603.40 : 173,409.90 = 36,715.40 : x
  2. Step 2: Convert to fraction form
    115,603.40/173,409.90 = 36,715.40/x
  3. Step 3: Cross multiply
    115,603.40x = 173,409.90 × 36,715.40
  4. Step 4: Simplify right side
    115,603.40x = 6,366,813,842.46
  5. Step 5: Solve for x
    x = 6,366,813,842.46/115,603.40
  6. Step 6: Final answer
    x = 55,074.62

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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.