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Finding the Fourth Proportional to 108,708.80, 163,063.20 and 104,772.20

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Solution

The fourth proportional to 108,708.80, 163,063.20 and 104,772.20 is: 157,158.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,708.80 : 163,063.20 = 104,772.20 : x
  2. Step 2: Convert to fraction form
    108,708.80/163,063.20 = 104,772.20/x
  3. Step 3: Cross multiply
    108,708.80x = 163,063.20 × 104,772.20
  4. Step 4: Simplify right side
    108,708.80x = 17,084,490,203.04
  5. Step 5: Solve for x
    x = 17,084,490,203.04/108,708.80
  6. Step 6: Final answer
    x = 157,158.30

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1.5x scale

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.