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Finding the Fourth Proportional to 116,209.80, 174,314.70 and 109,211.40

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Solution

The fourth proportional to 116,209.80, 174,314.70 and 109,211.40 is: 163,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,209.80 : 174,314.70 = 109,211.40 : x
  2. Step 2: Convert to fraction form
    116,209.80/174,314.70 = 109,211.40/x
  3. Step 3: Cross multiply
    116,209.80x = 174,314.70 × 109,211.40
  4. Step 4: Simplify right side
    116,209.80x = 19,037,152,427.58
  5. Step 5: Solve for x
    x = 19,037,152,427.58/116,209.80
  6. Step 6: Final answer
    x = 163,817.10

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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.