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Finding the Fourth Proportional to 370,965.76, 556,488.72 and 118,186.64

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Solution

The fourth proportional to 370,965.76, 556,488.72 and 118,186.64 is: 177,292.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,965.76 : 556,488.72 = 118,186.64 : x
  2. Step 2: Convert to fraction form
    370,965.76/556,488.72 = 118,186.64/x
  3. Step 3: Cross multiply
    370,965.76x = 556,488.72 × 118,186.64
  4. Step 4: Simplify right side
    370,965.76x = 65,769,532,014.70
  5. Step 5: Solve for x
    x = 65,769,532,014.70/370,965.76
  6. Step 6: Final answer
    x = 177,292.73

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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.