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Finding the Fourth Proportional to 181,123.83, 249,787.26 and 113,147.01

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Solution

The fourth proportional to 181,123.83, 249,787.26 and 113,147.01 is: 156,040.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,123.83 : 249,787.26 = 113,147.01 : x
  2. Step 2: Convert to fraction form
    181,123.83/249,787.26 = 113,147.01/x
  3. Step 3: Cross multiply
    181,123.83x = 249,787.26 × 113,147.01
  4. Step 4: Simplify right side
    181,123.83x = 28,262,681,605.09
  5. Step 5: Solve for x
    x = 28,262,681,605.09/181,123.83
  6. Step 6: Final answer
    x = 156,040.66

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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.