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Finding the Fourth Proportional to 117,777.12, 162,534 and 67,476

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Solution

The fourth proportional to 117,777.12, 162,534 and 67,476 is: 93,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,777.12 : 162,534 = 67,476 : x
  2. Step 2: Convert to fraction form
    117,777.12/162,534 = 67,476/x
  3. Step 3: Cross multiply
    117,777.12x = 162,534 × 67,476
  4. Step 4: Simplify right side
    117,777.12x = 10,967,144,184
  5. Step 5: Solve for x
    x = 10,967,144,184/117,777.12
  6. Step 6: Final answer
    x = 93,117.78

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