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Finding the Fourth Proportional to 134,991.77, 186,283.80 and 74,559.29

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Solution

The fourth proportional to 134,991.77, 186,283.80 and 74,559.29 is: 102,889.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,991.77 : 186,283.80 = 74,559.29 : x
  2. Step 2: Convert to fraction form
    134,991.77/186,283.80 = 74,559.29/x
  3. Step 3: Cross multiply
    134,991.77x = 186,283.80 × 74,559.29
  4. Step 4: Simplify right side
    134,991.77x = 13,889,186,935.08
  5. Step 5: Solve for x
    x = 13,889,186,935.08/134,991.77
  6. Step 6: Final answer
    x = 102,889.14

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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.