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Finding the Fourth Proportional to 64,994.92, 97,427.79 and 45,231.96

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Solution

The fourth proportional to 64,994.92, 97,427.79 and 45,231.96 is: 67,802.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,994.92 : 97,427.79 = 45,231.96 : x
  2. Step 2: Convert to fraction form
    64,994.92/97,427.79 = 45,231.96/x
  3. Step 3: Cross multiply
    64,994.92x = 97,427.79 × 45,231.96
  4. Step 4: Simplify right side
    64,994.92x = 4,406,849,900.17
  5. Step 5: Solve for x
    x = 4,406,849,900.17/64,994.92
  6. Step 6: Final answer
    x = 67,802.99

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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.