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Finding the Fourth Proportional to 145,626.94, 218,525.34 and 61,381.96

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Solution

The fourth proportional to 145,626.94, 218,525.34 and 61,381.96 is: 92,108.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,626.94 : 218,525.34 = 61,381.96 : x
  2. Step 2: Convert to fraction form
    145,626.94/218,525.34 = 61,381.96/x
  3. Step 3: Cross multiply
    145,626.94x = 218,525.34 × 61,381.96
  4. Step 4: Simplify right side
    145,626.94x = 13,413,513,678.87
  5. Step 5: Solve for x
    x = 13,413,513,678.87/145,626.94
  6. Step 6: Final answer
    x = 92,108.74

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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.