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Finding the Fourth Proportional to 116,203.80, 174,305.70 and 109,205.40

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Solution

The fourth proportional to 116,203.80, 174,305.70 and 109,205.40 is: 163,808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,203.80 : 174,305.70 = 109,205.40 : x
  2. Step 2: Convert to fraction form
    116,203.80/174,305.70 = 109,205.40/x
  3. Step 3: Cross multiply
    116,203.80x = 174,305.70 × 109,205.40
  4. Step 4: Simplify right side
    116,203.80x = 19,035,123,690.78
  5. Step 5: Solve for x
    x = 19,035,123,690.78/116,203.80
  6. Step 6: Final answer
    x = 163,808.10

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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.