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Finding the Fourth Proportional to 201,572.10, 302,293.68 and 66,610.98

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Solution

The fourth proportional to 201,572.10, 302,293.68 and 66,610.98 is: 99,895.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,572.10 : 302,293.68 = 66,610.98 : x
  2. Step 2: Convert to fraction form
    201,572.10/302,293.68 = 66,610.98/x
  3. Step 3: Cross multiply
    201,572.10x = 302,293.68 × 66,610.98
  4. Step 4: Simplify right side
    201,572.10x = 20,136,078,272.61
  5. Step 5: Solve for x
    x = 20,136,078,272.61/201,572.10
  6. Step 6: Final answer
    x = 99,895.17

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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.