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Finding the Fourth Proportional to 192,886.40, 289,329.60 and 157,865.60

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Solution

The fourth proportional to 192,886.40, 289,329.60 and 157,865.60 is: 236,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,886.40 : 289,329.60 = 157,865.60 : x
  2. Step 2: Convert to fraction form
    192,886.40/289,329.60 = 157,865.60/x
  3. Step 3: Cross multiply
    192,886.40x = 289,329.60 × 157,865.60
  4. Step 4: Simplify right side
    192,886.40x = 45,675,190,901.76
  5. Step 5: Solve for x
    x = 45,675,190,901.76/192,886.40
  6. Step 6: Final answer
    x = 236,798.40

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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.