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Finding the Fourth Proportional to 125,681.91, 188,522.90 and 36,935.42

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Solution

The fourth proportional to 125,681.91, 188,522.90 and 36,935.42 is: 55,403.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,681.91 : 188,522.90 = 36,935.42 : x
  2. Step 2: Convert to fraction form
    125,681.91/188,522.90 = 36,935.42/x
  3. Step 3: Cross multiply
    125,681.91x = 188,522.90 × 36,935.42
  4. Step 4: Simplify right side
    125,681.91x = 6,963,173,054.76
  5. Step 5: Solve for x
    x = 6,963,173,054.76/125,681.91
  6. Step 6: Final answer
    x = 55,403.14

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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.