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Finding the Fourth Proportional to 219,160.80, 328,741.20 and 183,731.40

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Solution

The fourth proportional to 219,160.80, 328,741.20 and 183,731.40 is: 275,597.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,160.80 : 328,741.20 = 183,731.40 : x
  2. Step 2: Convert to fraction form
    219,160.80/328,741.20 = 183,731.40/x
  3. Step 3: Cross multiply
    219,160.80x = 328,741.20 × 183,731.40
  4. Step 4: Simplify right side
    219,160.80x = 60,400,080,913.68
  5. Step 5: Solve for x
    x = 60,400,080,913.68/219,160.80
  6. Step 6: Final answer
    x = 275,597.10

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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.