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Finding the Fourth Proportional to 185,313.80, 277,970.70 and 125,438.60

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Solution

The fourth proportional to 185,313.80, 277,970.70 and 125,438.60 is: 188,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,313.80 : 277,970.70 = 125,438.60 : x
  2. Step 2: Convert to fraction form
    185,313.80/277,970.70 = 125,438.60/x
  3. Step 3: Cross multiply
    185,313.80x = 277,970.70 × 125,438.60
  4. Step 4: Simplify right side
    185,313.80x = 34,868,255,449.02
  5. Step 5: Solve for x
    x = 34,868,255,449.02/185,313.80
  6. Step 6: Final answer
    x = 188,157.90

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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.