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Finding the Fourth Proportional to 70,798.05, 97,687.82 and 45,284.87

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Solution

The fourth proportional to 70,798.05, 97,687.82 and 45,284.87 is: 62,484.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,798.05 : 97,687.82 = 45,284.87 : x
  2. Step 2: Convert to fraction form
    70,798.05/97,687.82 = 45,284.87/x
  3. Step 3: Cross multiply
    70,798.05x = 97,687.82 × 45,284.87
  4. Step 4: Simplify right side
    70,798.05x = 4,423,780,586.72
  5. Step 5: Solve for x
    x = 4,423,780,586.72/70,798.05
  6. Step 6: Final answer
    x = 62,484.50

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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.