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Finding the Fourth Proportional to 100,368.10, 150,739.29 and 88,364.51

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Solution

The fourth proportional to 100,368.10, 150,739.29 and 88,364.51 is: 132,711.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,368.10 : 150,739.29 = 88,364.51 : x
  2. Step 2: Convert to fraction form
    100,368.10/150,739.29 = 88,364.51/x
  3. Step 3: Cross multiply
    100,368.10x = 150,739.29 × 88,364.51
  4. Step 4: Simplify right side
    100,368.10x = 13,320,002,303.08
  5. Step 5: Solve for x
    x = 13,320,002,303.08/100,368.10
  6. Step 6: Final answer
    x = 132,711.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.