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Finding the Fourth Proportional to 79,643.60, 119,483.86 and 27,053.12

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Solution

The fourth proportional to 79,643.60, 119,483.86 and 27,053.12 is: 40,585.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,643.60 : 119,483.86 = 27,053.12 : x
  2. Step 2: Convert to fraction form
    79,643.60/119,483.86 = 27,053.12/x
  3. Step 3: Cross multiply
    79,643.60x = 119,483.86 × 27,053.12
  4. Step 4: Simplify right side
    79,643.60x = 3,232,411,202.64
  5. Step 5: Solve for x
    x = 3,232,411,202.64/79,643.60
  6. Step 6: Final answer
    x = 40,585.95

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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.