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Finding the Fourth Proportional to 95,640, 143,483.04 and 29,976

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Solution

The fourth proportional to 95,640, 143,483.04 and 29,976 is: 44,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,640 : 143,483.04 = 29,976 : x
  2. Step 2: Convert to fraction form
    95,640/143,483.04 = 29,976/x
  3. Step 3: Cross multiply
    95,640x = 143,483.04 × 29,976
  4. Step 4: Simplify right side
    95,640x = 4,301,047,607.04
  5. Step 5: Solve for x
    x = 4,301,047,607.04/95,640
  6. Step 6: Final answer
    x = 44,971.22

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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.