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Finding the Fourth Proportional to 145,951.64, 218,936.69 and 61,696.10

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Solution

The fourth proportional to 145,951.64, 218,936.69 and 61,696.10 is: 92,548.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,951.64 : 218,936.69 = 61,696.10 : x
  2. Step 2: Convert to fraction form
    145,951.64/218,936.69 = 61,696.10/x
  3. Step 3: Cross multiply
    145,951.64x = 218,936.69 × 61,696.10
  4. Step 4: Simplify right side
    145,951.64x = 13,507,539,919.91
  5. Step 5: Solve for x
    x = 13,507,539,919.91/145,951.64
  6. Step 6: Final answer
    x = 92,548.05

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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.