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Finding the Fourth Proportional to 186,488.70, 257,325.66 and 104,800.86

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Solution

The fourth proportional to 186,488.70, 257,325.66 and 104,800.86 is: 144,609.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,488.70 : 257,325.66 = 104,800.86 : x
  2. Step 2: Convert to fraction form
    186,488.70/257,325.66 = 104,800.86/x
  3. Step 3: Cross multiply
    186,488.70x = 257,325.66 × 104,800.86
  4. Step 4: Simplify right side
    186,488.70x = 26,967,950,468.07
  5. Step 5: Solve for x
    x = 26,967,950,468.07/186,488.70
  6. Step 6: Final answer
    x = 144,609.03

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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.