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Finding the Fourth Proportional to 249,158.37, 373,797.12 and 80,678.88

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Solution

The fourth proportional to 249,158.37, 373,797.12 and 80,678.88 is: 121,037.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,158.37 : 373,797.12 = 80,678.88 : x
  2. Step 2: Convert to fraction form
    249,158.37/373,797.12 = 80,678.88/x
  3. Step 3: Cross multiply
    249,158.37x = 373,797.12 × 80,678.88
  4. Step 4: Simplify right side
    249,158.37x = 30,157,532,988.83
  5. Step 5: Solve for x
    x = 30,157,532,988.83/249,158.37
  6. Step 6: Final answer
    x = 121,037.61

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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.