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Finding the Fourth Proportional to 186,173.79, 256,922.46 and 101,290.92

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Solution

The fourth proportional to 186,173.79, 256,922.46 and 101,290.92 is: 139,782.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,173.79 : 256,922.46 = 101,290.92 : x
  2. Step 2: Convert to fraction form
    186,173.79/256,922.46 = 101,290.92/x
  3. Step 3: Cross multiply
    186,173.79x = 256,922.46 × 101,290.92
  4. Step 4: Simplify right side
    186,173.79x = 26,023,912,342.06
  5. Step 5: Solve for x
    x = 26,023,912,342.06/186,173.79
  6. Step 6: Final answer
    x = 139,782.90

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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.