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Finding the Fourth Proportional to 145,006.92, 217,589.66 and 56,263.92

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Solution

The fourth proportional to 145,006.92, 217,589.66 and 56,263.92 is: 84,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,006.92 : 217,589.66 = 56,263.92 : x
  2. Step 2: Convert to fraction form
    145,006.92/217,589.66 = 56,263.92/x
  3. Step 3: Cross multiply
    145,006.92x = 217,589.66 × 56,263.92
  4. Step 4: Simplify right side
    145,006.92x = 12,242,446,941.75
  5. Step 5: Solve for x
    x = 12,242,446,941.75/145,006.92
  6. Step 6: Final answer
    x = 84,426.64

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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.