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Finding the Fourth Proportional to 70,155.44, 96,797.16 and 45,038.96

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Solution

The fourth proportional to 70,155.44, 96,797.16 and 45,038.96 is: 62,142.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,155.44 : 96,797.16 = 45,038.96 : x
  2. Step 2: Convert to fraction form
    70,155.44/96,797.16 = 45,038.96/x
  3. Step 3: Cross multiply
    70,155.44x = 96,797.16 × 45,038.96
  4. Step 4: Simplify right side
    70,155.44x = 4,359,643,417.35
  5. Step 5: Solve for x
    x = 4,359,643,417.35/70,155.44
  6. Step 6: Final answer
    x = 62,142.63

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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.