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Finding the Fourth Proportional to 186,392.44, 257,186.22 and 118,420.48

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Solution

The fourth proportional to 186,392.44, 257,186.22 and 118,420.48 is: 163,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,392.44 : 257,186.22 = 118,420.48 : x
  2. Step 2: Convert to fraction form
    186,392.44/257,186.22 = 118,420.48/x
  3. Step 3: Cross multiply
    186,392.44x = 257,186.22 × 118,420.48
  4. Step 4: Simplify right side
    186,392.44x = 30,456,114,335.85
  5. Step 5: Solve for x
    x = 30,456,114,335.85/186,392.44
  6. Step 6: Final answer
    x = 163,397.80

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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.