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Finding the Fourth Proportional to 136,962.44, 205,291.01 and 56,955.61

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Solution

The fourth proportional to 136,962.44, 205,291.01 and 56,955.61 is: 85,369.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,962.44 : 205,291.01 = 56,955.61 : x
  2. Step 2: Convert to fraction form
    136,962.44/205,291.01 = 56,955.61/x
  3. Step 3: Cross multiply
    136,962.44x = 205,291.01 × 56,955.61
  4. Step 4: Simplify right side
    136,962.44x = 11,692,473,390.83
  5. Step 5: Solve for x
    x = 11,692,473,390.83/136,962.44
  6. Step 6: Final answer
    x = 85,369.93

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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.