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Finding the Fourth Proportional to 163,338.66, 225,442.98 and 117,520.74

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Solution

The fourth proportional to 163,338.66, 225,442.98 and 117,520.74 is: 162,204.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,338.66 : 225,442.98 = 117,520.74 : x
  2. Step 2: Convert to fraction form
    163,338.66/225,442.98 = 117,520.74/x
  3. Step 3: Cross multiply
    163,338.66x = 225,442.98 × 117,520.74
  4. Step 4: Simplify right side
    163,338.66x = 26,494,225,837.41
  5. Step 5: Solve for x
    x = 26,494,225,837.41/163,338.66
  6. Step 6: Final answer
    x = 162,204.26

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1.5x scale

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.