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Finding the Fourth Proportional to 186,362.28, 257,186.76 and 101,485.56

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Solution

The fourth proportional to 186,362.28, 257,186.76 and 101,485.56 is: 140,053.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,362.28 : 257,186.76 = 101,485.56 : x
  2. Step 2: Convert to fraction form
    186,362.28/257,186.76 = 101,485.56/x
  3. Step 3: Cross multiply
    186,362.28x = 257,186.76 × 101,485.56
  4. Step 4: Simplify right side
    186,362.28x = 26,100,742,363.19
  5. Step 5: Solve for x
    x = 26,100,742,363.19/186,362.28
  6. Step 6: Final answer
    x = 140,053.78

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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.