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Finding the Fourth Proportional to 113,291.64, 169,927.63 and 53,305.87

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Solution

The fourth proportional to 113,291.64, 169,927.63 and 53,305.87 is: 79,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,291.64 : 169,927.63 = 53,305.87 : x
  2. Step 2: Convert to fraction form
    113,291.64/169,927.63 = 53,305.87/x
  3. Step 3: Cross multiply
    113,291.64x = 169,927.63 × 53,305.87
  4. Step 4: Simplify right side
    113,291.64x = 9,058,140,154.19
  5. Step 5: Solve for x
    x = 9,058,140,154.19/113,291.64
  6. Step 6: Final answer
    x = 79,954.18

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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.