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Finding the Fourth Proportional to 107,068.69, 147,748.62 and 59,319.19

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Solution

The fourth proportional to 107,068.69, 147,748.62 and 59,319.19 is: 81,857.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,068.69 : 147,748.62 = 59,319.19 : x
  2. Step 2: Convert to fraction form
    107,068.69/147,748.62 = 59,319.19/x
  3. Step 3: Cross multiply
    107,068.69x = 147,748.62 × 59,319.19
  4. Step 4: Simplify right side
    107,068.69x = 8,764,328,462.02
  5. Step 5: Solve for x
    x = 8,764,328,462.02/107,068.69
  6. Step 6: Final answer
    x = 81,857.06

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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.