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Finding the Fourth Proportional to 107,058.65, 147,740.63 and 59,311.98

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Solution

The fourth proportional to 107,058.65, 147,740.63 and 59,311.98 is: 81,850.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,058.65 : 147,740.63 = 59,311.98 : x
  2. Step 2: Convert to fraction form
    107,058.65/147,740.63 = 59,311.98/x
  3. Step 3: Cross multiply
    107,058.65x = 147,740.63 × 59,311.98
  4. Step 4: Simplify right side
    107,058.65x = 8,762,788,995.19
  5. Step 5: Solve for x
    x = 8,762,788,995.19/107,058.65
  6. Step 6: Final answer
    x = 81,850.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.