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Finding the Fourth Proportional to 189,073.68, 283,343.16 and 104,870.94

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Solution

The fourth proportional to 189,073.68, 283,343.16 and 104,870.94 is: 157,158.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,073.68 : 283,343.16 = 104,870.94 : x
  2. Step 2: Convert to fraction form
    189,073.68/283,343.16 = 104,870.94/x
  3. Step 3: Cross multiply
    189,073.68x = 283,343.16 × 104,870.94
  4. Step 4: Simplify right side
    189,073.68x = 29,714,463,531.77
  5. Step 5: Solve for x
    x = 29,714,463,531.77/189,073.68
  6. Step 6: Final answer
    x = 157,158.12

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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.