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Finding the Fourth Proportional to 208,069.70, 312,104.55 and 173,048.90

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Solution

The fourth proportional to 208,069.70, 312,104.55 and 173,048.90 is: 259,573.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,069.70 : 312,104.55 = 173,048.90 : x
  2. Step 2: Convert to fraction form
    208,069.70/312,104.55 = 173,048.90/x
  3. Step 3: Cross multiply
    208,069.70x = 312,104.55 × 173,048.90
  4. Step 4: Simplify right side
    208,069.70x = 54,009,349,062.50
  5. Step 5: Solve for x
    x = 54,009,349,062.50/208,069.70
  6. Step 6: Final answer
    x = 259,573.35

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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.