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Finding the Fourth Proportional to 115,732.40, 173,675.40 and 65,812.40

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Solution

The fourth proportional to 115,732.40, 173,675.40 and 65,812.40 is: 98,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,732.40 : 173,675.40 = 65,812.40 : x
  2. Step 2: Convert to fraction form
    115,732.40/173,675.40 = 65,812.40/x
  3. Step 3: Cross multiply
    115,732.40x = 173,675.40 × 65,812.40
  4. Step 4: Simplify right side
    115,732.40x = 11,429,994,894.96
  5. Step 5: Solve for x
    x = 11,429,994,894.96/115,732.40
  6. Step 6: Final answer
    x = 98,762.27

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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.