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Finding the Fourth Proportional to 154,557.84, 231,918.84 and 61,064.40

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Solution

The fourth proportional to 154,557.84, 231,918.84 and 61,064.40 is: 91,629.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,557.84 : 231,918.84 = 61,064.40 : x
  2. Step 2: Convert to fraction form
    154,557.84/231,918.84 = 61,064.40/x
  3. Step 3: Cross multiply
    154,557.84x = 231,918.84 × 61,064.40
  4. Step 4: Simplify right side
    154,557.84x = 14,161,984,813.30
  5. Step 5: Solve for x
    x = 14,161,984,813.30/154,557.84
  6. Step 6: Final answer
    x = 91,629.03

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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.