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Finding the Fourth Proportional to 154,532.40, 231,687.90 and 59,681.40

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Solution

The fourth proportional to 154,532.40, 231,687.90 and 59,681.40 is: 89,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,532.40 : 231,687.90 = 59,681.40 : x
  2. Step 2: Convert to fraction form
    154,532.40/231,687.90 = 59,681.40/x
  3. Step 3: Cross multiply
    154,532.40x = 231,687.90 × 59,681.40
  4. Step 4: Simplify right side
    154,532.40x = 13,827,458,235.06
  5. Step 5: Solve for x
    x = 13,827,458,235.06/154,532.40
  6. Step 6: Final answer
    x = 89,479.35

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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.