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Finding the Fourth Proportional to 364,065.12, 545,703.19 and 186,328.44

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Solution

The fourth proportional to 364,065.12, 545,703.19 and 186,328.44 is: 279,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,065.12 : 545,703.19 = 186,328.44 : x
  2. Step 2: Convert to fraction form
    364,065.12/545,703.19 = 186,328.44/x
  3. Step 3: Cross multiply
    364,065.12x = 545,703.19 × 186,328.44
  4. Step 4: Simplify right side
    364,065.12x = 101,680,024,095.72
  5. Step 5: Solve for x
    x = 101,680,024,095.72/364,065.12
  6. Step 6: Final answer
    x = 279,290.76

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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.