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Finding the Fourth Proportional to 157,168.76, 216,857.45 and 131,777.69

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Solution

The fourth proportional to 157,168.76, 216,857.45 and 131,777.69 is: 181,823.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,168.76 : 216,857.45 = 131,777.69 : x
  2. Step 2: Convert to fraction form
    157,168.76/216,857.45 = 131,777.69/x
  3. Step 3: Cross multiply
    157,168.76x = 216,857.45 × 131,777.69
  4. Step 4: Simplify right side
    157,168.76x = 28,576,973,065.45
  5. Step 5: Solve for x
    x = 28,576,973,065.45/157,168.76
  6. Step 6: Final answer
    x = 181,823.50

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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.