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Finding the Fourth Proportional to 186,289.72, 257,073.26 and 101,404.96

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Solution

The fourth proportional to 186,289.72, 257,073.26 and 101,404.96 is: 139,935.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,289.72 : 257,073.26 = 101,404.96 : x
  2. Step 2: Convert to fraction form
    186,289.72/257,073.26 = 101,404.96/x
  3. Step 3: Cross multiply
    186,289.72x = 257,073.26 × 101,404.96
  4. Step 4: Simplify right side
    186,289.72x = 26,068,503,647.37
  5. Step 5: Solve for x
    x = 26,068,503,647.37/186,289.72
  6. Step 6: Final answer
    x = 139,935.28

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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.