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Finding the Fourth Proportional to 546,528.51, 819,731.19 and 147,198.51

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Solution

The fourth proportional to 546,528.51, 819,731.19 and 147,198.51 is: 220,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,528.51 : 819,731.19 = 147,198.51 : x
  2. Step 2: Convert to fraction form
    546,528.51/819,731.19 = 147,198.51/x
  3. Step 3: Cross multiply
    546,528.51x = 819,731.19 × 147,198.51
  4. Step 4: Simplify right side
    546,528.51x = 120,663,209,768.53
  5. Step 5: Solve for x
    x = 120,663,209,768.53/546,528.51
  6. Step 6: Final answer
    x = 220,781.18

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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.