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Finding the Fourth Proportional to 163,602.10, 245,534.39 and 84,738.88

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Solution

The fourth proportional to 163,602.10, 245,534.39 and 84,738.88 is: 127,176.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,602.10 : 245,534.39 = 84,738.88 : x
  2. Step 2: Convert to fraction form
    163,602.10/245,534.39 = 84,738.88/x
  3. Step 3: Cross multiply
    163,602.10x = 245,534.39 × 84,738.88
  4. Step 4: Simplify right side
    163,602.10x = 20,806,308,029.95
  5. Step 5: Solve for x
    x = 20,806,308,029.95/163,602.10
  6. Step 6: Final answer
    x = 127,176.29

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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.