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Finding the Fourth Proportional to 115,656.40, 173,225.40 and 94,920.40

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Solution

The fourth proportional to 115,656.40, 173,225.40 and 94,920.40 is: 142,167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,656.40 : 173,225.40 = 94,920.40 : x
  2. Step 2: Convert to fraction form
    115,656.40/173,225.40 = 94,920.40/x
  3. Step 3: Cross multiply
    115,656.40x = 173,225.40 × 94,920.40
  4. Step 4: Simplify right side
    115,656.40x = 16,442,624,258.16
  5. Step 5: Solve for x
    x = 16,442,624,258.16/115,656.40
  6. Step 6: Final answer
    x = 142,167.87

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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.