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Finding the Fourth Proportional to 116,135.03, 174,084.89 and 78,698.89

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Solution

The fourth proportional to 116,135.03, 174,084.89 and 78,698.89 is: 117,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,135.03 : 174,084.89 = 78,698.89 : x
  2. Step 2: Convert to fraction form
    116,135.03/174,084.89 = 78,698.89/x
  3. Step 3: Cross multiply
    116,135.03x = 174,084.89 × 78,698.89
  4. Step 4: Simplify right side
    116,135.03x = 13,700,286,344.85
  5. Step 5: Solve for x
    x = 13,700,286,344.85/116,135.03
  6. Step 6: Final answer
    x = 117,968.60

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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.