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Finding the Fourth Proportional to 111,707.56, 154,008.31 and 92,516.63

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Solution

The fourth proportional to 111,707.56, 154,008.31 and 92,516.63 is: 127,550.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,707.56 : 154,008.31 = 92,516.63 : x
  2. Step 2: Convert to fraction form
    111,707.56/154,008.31 = 92,516.63/x
  3. Step 3: Cross multiply
    111,707.56x = 154,008.31 × 92,516.63
  4. Step 4: Simplify right side
    111,707.56x = 14,248,330,131.83
  5. Step 5: Solve for x
    x = 14,248,330,131.83/111,707.56
  6. Step 6: Final answer
    x = 127,550.28

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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.