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Finding the Fourth Proportional to 125,567.73, 188,353.80 and 45,662.40

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Solution

The fourth proportional to 125,567.73, 188,353.80 and 45,662.40 is: 68,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,567.73 : 188,353.80 = 45,662.40 : x
  2. Step 2: Convert to fraction form
    125,567.73/188,353.80 = 45,662.40/x
  3. Step 3: Cross multiply
    125,567.73x = 188,353.80 × 45,662.40
  4. Step 4: Simplify right side
    125,567.73x = 8,600,686,557.12
  5. Step 5: Solve for x
    x = 8,600,686,557.12/125,567.73
  6. Step 6: Final answer
    x = 68,494.40

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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.