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Finding the Fourth Proportional to 115,492.71, 173,239.05 and 43,459.16

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Solution

The fourth proportional to 115,492.71, 173,239.05 and 43,459.16 is: 65,188.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,492.71 : 173,239.05 = 43,459.16 : x
  2. Step 2: Convert to fraction form
    115,492.71/173,239.05 = 43,459.16/x
  3. Step 3: Cross multiply
    115,492.71x = 173,239.05 × 43,459.16
  4. Step 4: Simplify right side
    115,492.71x = 7,528,823,592.20
  5. Step 5: Solve for x
    x = 7,528,823,592.20/115,492.71
  6. Step 6: Final answer
    x = 65,188.73

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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.