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Finding the Fourth Proportional to 116,813.60, 175,220.40 and 66,874.40

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Solution

The fourth proportional to 116,813.60, 175,220.40 and 66,874.40 is: 100,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,813.60 : 175,220.40 = 66,874.40 : x
  2. Step 2: Convert to fraction form
    116,813.60/175,220.40 = 66,874.40/x
  3. Step 3: Cross multiply
    116,813.60x = 175,220.40 × 66,874.40
  4. Step 4: Simplify right side
    116,813.60x = 11,717,759,117.76
  5. Step 5: Solve for x
    x = 11,717,759,117.76/116,813.60
  6. Step 6: Final answer
    x = 100,311.60

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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.