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Finding the Fourth Proportional to 112,576.81, 169,058.40 and 99,955.08

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Solution

The fourth proportional to 112,576.81, 169,058.40 and 99,955.08 is: 150,104.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,576.81 : 169,058.40 = 99,955.08 : x
  2. Step 2: Convert to fraction form
    112,576.81/169,058.40 = 99,955.08/x
  3. Step 3: Cross multiply
    112,576.81x = 169,058.40 × 99,955.08
  4. Step 4: Simplify right side
    112,576.81x = 16,898,246,155.81
  5. Step 5: Solve for x
    x = 16,898,246,155.81/112,576.81
  6. Step 6: Final answer
    x = 150,104.15

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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.