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Finding the Fourth Proportional to 186,651.30, 257,574.42 and 101,768.16

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Solution

The fourth proportional to 186,651.30, 257,574.42 and 101,768.16 is: 140,437.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,651.30 : 257,574.42 = 101,768.16 : x
  2. Step 2: Convert to fraction form
    186,651.30/257,574.42 = 101,768.16/x
  3. Step 3: Cross multiply
    186,651.30x = 257,574.42 × 101,768.16
  4. Step 4: Simplify right side
    186,651.30x = 26,212,874,786.47
  5. Step 5: Solve for x
    x = 26,212,874,786.47/186,651.30
  6. Step 6: Final answer
    x = 140,437.68

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1.5x scale

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.