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Finding the Fourth Proportional to 201,952.90, 302,856.45 and 102,079.90

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Solution

The fourth proportional to 201,952.90, 302,856.45 and 102,079.90 is: 153,083.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,952.90 : 302,856.45 = 102,079.90 : x
  2. Step 2: Convert to fraction form
    201,952.90/302,856.45 = 102,079.90/x
  3. Step 3: Cross multiply
    201,952.90x = 302,856.45 × 102,079.90
  4. Step 4: Simplify right side
    201,952.90x = 30,915,556,130.36
  5. Step 5: Solve for x
    x = 30,915,556,130.36/201,952.90
  6. Step 6: Final answer
    x = 153,083.00

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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.