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Finding the Fourth Proportional to 105,655.74, 158,425.29 and 43,369.98

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Solution

The fourth proportional to 105,655.74, 158,425.29 and 43,369.98 is: 65,031.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,655.74 : 158,425.29 = 43,369.98 : x
  2. Step 2: Convert to fraction form
    105,655.74/158,425.29 = 43,369.98/x
  3. Step 3: Cross multiply
    105,655.74x = 158,425.29 × 43,369.98
  4. Step 4: Simplify right side
    105,655.74x = 6,870,901,658.79
  5. Step 5: Solve for x
    x = 6,870,901,658.79/105,655.74
  6. Step 6: Final answer
    x = 65,031.03

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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.