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Finding the Fourth Proportional to 208,053.70, 312,080.55 and 173,032.90

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Solution

The fourth proportional to 208,053.70, 312,080.55 and 173,032.90 is: 259,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,053.70 : 312,080.55 = 173,032.90 : x
  2. Step 2: Convert to fraction form
    208,053.70/312,080.55 = 173,032.90/x
  3. Step 3: Cross multiply
    208,053.70x = 312,080.55 × 173,032.90
  4. Step 4: Simplify right side
    208,053.70x = 54,000,202,600.10
  5. Step 5: Solve for x
    x = 54,000,202,600.10/208,053.70
  6. Step 6: Final answer
    x = 259,549.35

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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.