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Finding the Fourth Proportional to 208,518.57, 287,544.60 and 185,475.69

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Solution

The fourth proportional to 208,518.57, 287,544.60 and 185,475.69 is: 255,768.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,518.57 : 287,544.60 = 185,475.69 : x
  2. Step 2: Convert to fraction form
    208,518.57/287,544.60 = 185,475.69/x
  3. Step 3: Cross multiply
    208,518.57x = 287,544.60 × 185,475.69
  4. Step 4: Simplify right side
    208,518.57x = 53,332,533,090.77
  5. Step 5: Solve for x
    x = 53,332,533,090.77/208,518.57
  6. Step 6: Final answer
    x = 255,768.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.