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Finding the Fourth Proportional to 115,598.61, 173,388.06 and 45,477.72

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Solution

The fourth proportional to 115,598.61, 173,388.06 and 45,477.72 is: 68,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,598.61 : 173,388.06 = 45,477.72 : x
  2. Step 2: Convert to fraction form
    115,598.61/173,388.06 = 45,477.72/x
  3. Step 3: Cross multiply
    115,598.61x = 173,388.06 × 45,477.72
  4. Step 4: Simplify right side
    115,598.61x = 7,885,293,644.02
  5. Step 5: Solve for x
    x = 7,885,293,644.02/115,598.61
  6. Step 6: Final answer
    x = 68,212.70

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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.