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Finding the Fourth Proportional to 76,474.99, 105,552.35 and 42,495.14

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Solution

The fourth proportional to 76,474.99, 105,552.35 and 42,495.14 is: 58,652.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,474.99 : 105,552.35 = 42,495.14 : x
  2. Step 2: Convert to fraction form
    76,474.99/105,552.35 = 42,495.14/x
  3. Step 3: Cross multiply
    76,474.99x = 105,552.35 × 42,495.14
  4. Step 4: Simplify right side
    76,474.99x = 4,485,461,890.58
  5. Step 5: Solve for x
    x = 4,485,461,890.58/76,474.99
  6. Step 6: Final answer
    x = 58,652.66

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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.