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Finding the Fourth Proportional to 367,357.40, 551,036.10 and 157,405.40

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Solution

The fourth proportional to 367,357.40, 551,036.10 and 157,405.40 is: 236,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,357.40 : 551,036.10 = 157,405.40 : x
  2. Step 2: Convert to fraction form
    367,357.40/551,036.10 = 157,405.40/x
  3. Step 3: Cross multiply
    367,357.40x = 551,036.10 × 157,405.40
  4. Step 4: Simplify right side
    367,357.40x = 86,736,057,734.94
  5. Step 5: Solve for x
    x = 86,736,057,734.94/367,357.40
  6. Step 6: Final answer
    x = 236,108.10

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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.