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Finding the Fourth Proportional to 59,159.67, 81,726.70 and 51,188.05

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Solution

The fourth proportional to 59,159.67, 81,726.70 and 51,188.05 is: 70,714.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,159.67 : 81,726.70 = 51,188.05 : x
  2. Step 2: Convert to fraction form
    59,159.67/81,726.70 = 51,188.05/x
  3. Step 3: Cross multiply
    59,159.67x = 81,726.70 × 51,188.05
  4. Step 4: Simplify right side
    59,159.67x = 4,183,430,405.94
  5. Step 5: Solve for x
    x = 4,183,430,405.94/59,159.67
  6. Step 6: Final answer
    x = 70,714.23

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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.