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Finding the Fourth Proportional to 193,080.40, 289,647.48 and 59,970.80

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Solution

The fourth proportional to 193,080.40, 289,647.48 and 59,970.80 is: 89,964.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,080.40 : 289,647.48 = 59,970.80 : x
  2. Step 2: Convert to fraction form
    193,080.40/289,647.48 = 59,970.80/x
  3. Step 3: Cross multiply
    193,080.40x = 289,647.48 × 59,970.80
  4. Step 4: Simplify right side
    193,080.40x = 17,370,391,093.58
  5. Step 5: Solve for x
    x = 17,370,391,093.58/193,080.40
  6. Step 6: Final answer
    x = 89,964.55

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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.