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Finding the Fourth Proportional to 452,581.16, 678,871.68 and 115,622.52

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Solution

The fourth proportional to 452,581.16, 678,871.68 and 115,622.52 is: 173,433.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,581.16 : 678,871.68 = 115,622.52 : x
  2. Step 2: Convert to fraction form
    452,581.16/678,871.68 = 115,622.52/x
  3. Step 3: Cross multiply
    452,581.16x = 678,871.68 × 115,622.52
  4. Step 4: Simplify right side
    452,581.16x = 78,492,854,398.23
  5. Step 5: Solve for x
    x = 78,492,854,398.23/452,581.16
  6. Step 6: Final answer
    x = 173,433.77

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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.