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Finding the Fourth Proportional to 96,014.40, 143,762.40 and 75,278.40

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Solution

The fourth proportional to 96,014.40, 143,762.40 and 75,278.40 is: 112,714.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,014.40 : 143,762.40 = 75,278.40 : x
  2. Step 2: Convert to fraction form
    96,014.40/143,762.40 = 75,278.40/x
  3. Step 3: Cross multiply
    96,014.40x = 143,762.40 × 75,278.40
  4. Step 4: Simplify right side
    96,014.40x = 10,822,203,452.16
  5. Step 5: Solve for x
    x = 10,822,203,452.16/96,014.40
  6. Step 6: Final answer
    x = 112,714.38

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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.