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Finding the Fourth Proportional to 117,492.66, 162,072 and 75,003.30

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Solution

The fourth proportional to 117,492.66, 162,072 and 75,003.30 is: 103,461.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,492.66 : 162,072 = 75,003.30 : x
  2. Step 2: Convert to fraction form
    117,492.66/162,072 = 75,003.30/x
  3. Step 3: Cross multiply
    117,492.66x = 162,072 × 75,003.30
  4. Step 4: Simplify right side
    117,492.66x = 12,155,934,837.60
  5. Step 5: Solve for x
    x = 12,155,934,837.60/117,492.66
  6. Step 6: Final answer
    x = 103,461.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.