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Finding the Fourth Proportional to 251,488.50, 346,878.46 and 170,775.90

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Solution

The fourth proportional to 251,488.50, 346,878.46 and 170,775.90 is: 235,551.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,488.50 : 346,878.46 = 170,775.90 : x
  2. Step 2: Convert to fraction form
    251,488.50/346,878.46 = 170,775.90/x
  3. Step 3: Cross multiply
    251,488.50x = 346,878.46 × 170,775.90
  4. Step 4: Simplify right side
    251,488.50x = 59,238,479,902.98
  5. Step 5: Solve for x
    x = 59,238,479,902.98/251,488.50
  6. Step 6: Final answer
    x = 235,551.45

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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.