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Finding the Fourth Proportional to 115,607.52, 173,484.18 and 45,477.72

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Solution

The fourth proportional to 115,607.52, 173,484.18 and 45,477.72 is: 68,245.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,607.52 : 173,484.18 = 45,477.72 : x
  2. Step 2: Convert to fraction form
    115,607.52/173,484.18 = 45,477.72/x
  3. Step 3: Cross multiply
    115,607.52x = 173,484.18 × 45,477.72
  4. Step 4: Simplify right side
    115,607.52x = 7,889,664,962.47
  5. Step 5: Solve for x
    x = 7,889,664,962.47/115,607.52
  6. Step 6: Final answer
    x = 68,245.26

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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.