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Finding the Fourth Proportional to 73,668.10, 110,210.55 and 63,915.70

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Solution

The fourth proportional to 73,668.10, 110,210.55 and 63,915.70 is: 95,620.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,668.10 : 110,210.55 = 63,915.70 : x
  2. Step 2: Convert to fraction form
    73,668.10/110,210.55 = 63,915.70/x
  3. Step 3: Cross multiply
    73,668.10x = 110,210.55 × 63,915.70
  4. Step 4: Simplify right side
    73,668.10x = 7,044,184,450.64
  5. Step 5: Solve for x
    x = 7,044,184,450.64/73,668.10
  6. Step 6: Final answer
    x = 95,620.55

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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.