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Finding the Fourth Proportional to 115,466.70, 173,200.05 and 76,068.30

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Solution

The fourth proportional to 115,466.70, 173,200.05 and 76,068.30 is: 114,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,466.70 : 173,200.05 = 76,068.30 : x
  2. Step 2: Convert to fraction form
    115,466.70/173,200.05 = 76,068.30/x
  3. Step 3: Cross multiply
    115,466.70x = 173,200.05 × 76,068.30
  4. Step 4: Simplify right side
    115,466.70x = 13,175,033,363.42
  5. Step 5: Solve for x
    x = 13,175,033,363.42/115,466.70
  6. Step 6: Final answer
    x = 114,102.45

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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.