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Finding the Fourth Proportional to 79,622.46, 109,866.45 and 45,624.40

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Solution

The fourth proportional to 79,622.46, 109,866.45 and 45,624.40 is: 62,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,622.46 : 109,866.45 = 45,624.40 : x
  2. Step 2: Convert to fraction form
    79,622.46/109,866.45 = 45,624.40/x
  3. Step 3: Cross multiply
    79,622.46x = 109,866.45 × 45,624.40
  4. Step 4: Simplify right side
    79,622.46x = 5,012,590,861.38
  5. Step 5: Solve for x
    x = 5,012,590,861.38/79,622.46
  6. Step 6: Final answer
    x = 62,954.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.