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Finding the Fourth Proportional to 186,488.63, 257,355.53 and 101,605.69

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Solution

The fourth proportional to 186,488.63, 257,355.53 and 101,605.69 is: 140,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,488.63 : 257,355.53 = 101,605.69 : x
  2. Step 2: Convert to fraction form
    186,488.63/257,355.53 = 101,605.69/x
  3. Step 3: Cross multiply
    186,488.63x = 257,355.53 × 101,605.69
  4. Step 4: Simplify right side
    186,488.63x = 26,148,786,395.65
  5. Step 5: Solve for x
    x = 26,148,786,395.65/186,488.63
  6. Step 6: Final answer
    x = 140,216.52

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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.