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Finding the Fourth Proportional to 95,641.34, 143,400.47 and 45,720.32

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Solution

The fourth proportional to 95,641.34, 143,400.47 and 45,720.32 is: 68,551.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,641.34 : 143,400.47 = 45,720.32 : x
  2. Step 2: Convert to fraction form
    95,641.34/143,400.47 = 45,720.32/x
  3. Step 3: Cross multiply
    95,641.34x = 143,400.47 × 45,720.32
  4. Step 4: Simplify right side
    95,641.34x = 6,556,314,430.95
  5. Step 5: Solve for x
    x = 6,556,314,430.95/95,641.34
  6. Step 6: Final answer
    x = 68,551.06

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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.