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Finding the Fourth Proportional to 186,615.92, 257,533.32 and 101,736.56

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Solution

The fourth proportional to 186,615.92, 257,533.32 and 101,736.56 is: 140,398.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,615.92 : 257,533.32 = 101,736.56 : x
  2. Step 2: Convert to fraction form
    186,615.92/257,533.32 = 101,736.56/x
  3. Step 3: Cross multiply
    186,615.92x = 257,533.32 × 101,736.56
  4. Step 4: Simplify right side
    186,615.92x = 26,200,554,062.18
  5. Step 5: Solve for x
    x = 26,200,554,062.18/186,615.92
  6. Step 6: Final answer
    x = 140,398.28

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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.