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Finding the Fourth Proportional to 201,298.68, 301,775.18 and 112,479.48

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Solution

The fourth proportional to 201,298.68, 301,775.18 and 112,479.48 is: 168,622.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,298.68 : 301,775.18 = 112,479.48 : x
  2. Step 2: Convert to fraction form
    201,298.68/301,775.18 = 112,479.48/x
  3. Step 3: Cross multiply
    201,298.68x = 301,775.18 × 112,479.48
  4. Step 4: Simplify right side
    201,298.68x = 33,943,515,323.31
  5. Step 5: Solve for x
    x = 33,943,515,323.31/201,298.68
  6. Step 6: Final answer
    x = 168,622.64

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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.