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Finding the Fourth Proportional to 551,139.84, 826,714.20 and 151,802.64

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Solution

The fourth proportional to 551,139.84, 826,714.20 and 151,802.64 is: 227,705.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,139.84 : 826,714.20 = 151,802.64 : x
  2. Step 2: Convert to fraction form
    551,139.84/826,714.20 = 151,802.64/x
  3. Step 3: Cross multiply
    551,139.84x = 826,714.20 × 151,802.64
  4. Step 4: Simplify right side
    551,139.84x = 125,497,398,085.49
  5. Step 5: Solve for x
    x = 125,497,398,085.49/551,139.84
  6. Step 6: Final answer
    x = 227,705.18

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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.