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Finding the Fourth Proportional to 125,208.55, 187,830.37 and 40,975.34

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Solution

The fourth proportional to 125,208.55, 187,830.37 and 40,975.34 is: 61,468.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,208.55 : 187,830.37 = 40,975.34 : x
  2. Step 2: Convert to fraction form
    125,208.55/187,830.37 = 40,975.34/x
  3. Step 3: Cross multiply
    125,208.55x = 187,830.37 × 40,975.34
  4. Step 4: Simplify right side
    125,208.55x = 7,696,412,269.90
  5. Step 5: Solve for x
    x = 7,696,412,269.90/125,208.55
  6. Step 6: Final answer
    x = 61,468.74

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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.