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Finding the Fourth Proportional to 117,432.99, 162,055.43 and 71,476.02

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Solution

The fourth proportional to 117,432.99, 162,055.43 and 71,476.02 is: 98,635.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,432.99 : 162,055.43 = 71,476.02 : x
  2. Step 2: Convert to fraction form
    117,432.99/162,055.43 = 71,476.02/x
  3. Step 3: Cross multiply
    117,432.99x = 162,055.43 × 71,476.02
  4. Step 4: Simplify right side
    117,432.99x = 11,583,077,468.50
  5. Step 5: Solve for x
    x = 11,583,077,468.50/117,432.99
  6. Step 6: Final answer
    x = 98,635.63

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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.