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Finding the Fourth Proportional to 186,608.76, 257,438.88 and 118,589.27

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Solution

The fourth proportional to 186,608.76, 257,438.88 and 118,589.27 is: 163,601.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,608.76 : 257,438.88 = 118,589.27 : x
  2. Step 2: Convert to fraction form
    186,608.76/257,438.88 = 118,589.27/x
  3. Step 3: Cross multiply
    186,608.76x = 257,438.88 × 118,589.27
  4. Step 4: Simplify right side
    186,608.76x = 30,529,487,783.98
  5. Step 5: Solve for x
    x = 30,529,487,783.98/186,608.76
  6. Step 6: Final answer
    x = 163,601.58

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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.