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Finding the Fourth Proportional to 507,837.28, 761,802.03 and 133,860.28

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Solution

The fourth proportional to 507,837.28, 761,802.03 and 133,860.28 is: 200,802.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,837.28 : 761,802.03 = 133,860.28 : x
  2. Step 2: Convert to fraction form
    507,837.28/761,802.03 = 133,860.28/x
  3. Step 3: Cross multiply
    507,837.28x = 761,802.03 × 133,860.28
  4. Step 4: Simplify right side
    507,837.28x = 101,975,033,040.37
  5. Step 5: Solve for x
    x = 101,975,033,040.37/507,837.28
  6. Step 6: Final answer
    x = 200,802.57

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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.