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Finding the Fourth Proportional to 115,560, 173,061.36 and 56,248.56

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Solution

The fourth proportional to 115,560, 173,061.36 and 56,248.56 is: 84,237.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,560 : 173,061.36 = 56,248.56 : x
  2. Step 2: Convert to fraction form
    115,560/173,061.36 = 56,248.56/x
  3. Step 3: Cross multiply
    115,560x = 173,061.36 × 56,248.56
  4. Step 4: Simplify right side
    115,560x = 9,734,452,291.64
  5. Step 5: Solve for x
    x = 9,734,452,291.64/115,560
  6. Step 6: Final answer
    x = 84,237.21

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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.