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Finding the Fourth Proportional to 70,869.74, 97,804.46 and 40,663.62

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Solution

The fourth proportional to 70,869.74, 97,804.46 and 40,663.62 is: 56,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,869.74 : 97,804.46 = 40,663.62 : x
  2. Step 2: Convert to fraction form
    70,869.74/97,804.46 = 40,663.62/x
  3. Step 3: Cross multiply
    70,869.74x = 97,804.46 × 40,663.62
  4. Step 4: Simplify right side
    70,869.74x = 3,977,083,497.40
  5. Step 5: Solve for x
    x = 3,977,083,497.40/70,869.74
  6. Step 6: Final answer
    x = 56,118.22

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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.