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Finding the Fourth Proportional to 115,950.40, 173,666.40 and 89,569.60

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Solution

The fourth proportional to 115,950.40, 173,666.40 and 89,569.60 is: 134,154.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,950.40 : 173,666.40 = 89,569.60 : x
  2. Step 2: Convert to fraction form
    115,950.40/173,666.40 = 89,569.60/x
  3. Step 3: Cross multiply
    115,950.40x = 173,666.40 × 89,569.60
  4. Step 4: Simplify right side
    115,950.40x = 15,555,229,981.44
  5. Step 5: Solve for x
    x = 15,555,229,981.44/115,950.40
  6. Step 6: Final answer
    x = 134,154.17

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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.