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Finding the Fourth Proportional to 489,312.36, 733,969.66 and 134,331.24

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Solution

The fourth proportional to 489,312.36, 733,969.66 and 134,331.24 is: 201,497.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,312.36 : 733,969.66 = 134,331.24 : x
  2. Step 2: Convert to fraction form
    489,312.36/733,969.66 = 134,331.24/x
  3. Step 3: Cross multiply
    489,312.36x = 733,969.66 × 134,331.24
  4. Step 4: Simplify right side
    489,312.36x = 98,595,054,550.18
  5. Step 5: Solve for x
    x = 98,595,054,550.18/489,312.36
  6. Step 6: Final answer
    x = 201,497.17

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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.