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Finding the Fourth Proportional to 141,897.34, 212,702.28 and 92,009.08

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Solution

The fourth proportional to 141,897.34, 212,702.28 and 92,009.08 is: 137,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,897.34 : 212,702.28 = 92,009.08 : x
  2. Step 2: Convert to fraction form
    141,897.34/212,702.28 = 92,009.08/x
  3. Step 3: Cross multiply
    141,897.34x = 212,702.28 × 92,009.08
  4. Step 4: Simplify right side
    141,897.34x = 19,570,541,096.70
  5. Step 5: Solve for x
    x = 19,570,541,096.70/141,897.34
  6. Step 6: Final answer
    x = 137,920.42

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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.