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Finding the Fourth Proportional to 125,417.88, 188,346.78 and 97,369.56

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Solution

The fourth proportional to 125,417.88, 188,346.78 and 97,369.56 is: 146,225.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,417.88 : 188,346.78 = 97,369.56 : x
  2. Step 2: Convert to fraction form
    125,417.88/188,346.78 = 97,369.56/x
  3. Step 3: Cross multiply
    125,417.88x = 188,346.78 × 97,369.56
  4. Step 4: Simplify right side
    125,417.88x = 18,339,243,096.02
  5. Step 5: Solve for x
    x = 18,339,243,096.02/125,417.88
  6. Step 6: Final answer
    x = 146,225.11

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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.