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Finding the Fourth Proportional to 201,702.90, 302,521.95 and 61,428.90

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Solution

The fourth proportional to 201,702.90, 302,521.95 and 61,428.90 is: 92,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,702.90 : 302,521.95 = 61,428.90 : x
  2. Step 2: Convert to fraction form
    201,702.90/302,521.95 = 61,428.90/x
  3. Step 3: Cross multiply
    201,702.90x = 302,521.95 × 61,428.90
  4. Step 4: Simplify right side
    201,702.90x = 18,583,590,614.36
  5. Step 5: Solve for x
    x = 18,583,590,614.36/201,702.90
  6. Step 6: Final answer
    x = 92,133.48

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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.