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Finding the Fourth Proportional to 70,894.44, 106,378.74 and 45,928.08

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Solution

The fourth proportional to 70,894.44, 106,378.74 and 45,928.08 is: 68,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,894.44 : 106,378.74 = 45,928.08 : x
  2. Step 2: Convert to fraction form
    70,894.44/106,378.74 = 45,928.08/x
  3. Step 3: Cross multiply
    70,894.44x = 106,378.74 × 45,928.08
  4. Step 4: Simplify right side
    70,894.44x = 4,885,771,281.02
  5. Step 5: Solve for x
    x = 4,885,771,281.02/70,894.44
  6. Step 6: Final answer
    x = 68,916.14

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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.