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Finding the Fourth Proportional to 201,561.06, 302,330.60 and 61,308.76

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Solution

The fourth proportional to 201,561.06, 302,330.60 and 61,308.76 is: 91,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,561.06 : 302,330.60 = 61,308.76 : x
  2. Step 2: Convert to fraction form
    201,561.06/302,330.60 = 61,308.76/x
  3. Step 3: Cross multiply
    201,561.06x = 302,330.60 × 61,308.76
  4. Step 4: Simplify right side
    201,561.06x = 18,535,514,196.06
  5. Step 5: Solve for x
    x = 18,535,514,196.06/201,561.06
  6. Step 6: Final answer
    x = 91,959.80

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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.