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Finding the Fourth Proportional to 508,973.19, 763,496.52 and 154,015.20

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Solution

The fourth proportional to 508,973.19, 763,496.52 and 154,015.20 is: 231,033.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,973.19 : 763,496.52 = 154,015.20 : x
  2. Step 2: Convert to fraction form
    508,973.19/763,496.52 = 154,015.20/x
  3. Step 3: Cross multiply
    508,973.19x = 763,496.52 × 154,015.20
  4. Step 4: Simplify right side
    508,973.19x = 117,590,069,227.10
  5. Step 5: Solve for x
    x = 117,590,069,227.10/508,973.19
  6. Step 6: Final answer
    x = 231,033.92

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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.