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Finding the Fourth Proportional to 70,899.72, 97,782.02 and 42,599.94

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Solution

The fourth proportional to 70,899.72, 97,782.02 and 42,599.94 is: 58,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,899.72 : 97,782.02 = 42,599.94 : x
  2. Step 2: Convert to fraction form
    70,899.72/97,782.02 = 42,599.94/x
  3. Step 3: Cross multiply
    70,899.72x = 97,782.02 × 42,599.94
  4. Step 4: Simplify right side
    70,899.72x = 4,165,507,972.08
  5. Step 5: Solve for x
    x = 4,165,507,972.08/70,899.72
  6. Step 6: Final answer
    x = 58,752.11

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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.