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Finding the Fourth Proportional to 113,592.90, 156,758.84 and 65,874.58

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Solution

The fourth proportional to 113,592.90, 156,758.84 and 65,874.58 is: 90,907.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,592.90 : 156,758.84 = 65,874.58 : x
  2. Step 2: Convert to fraction form
    113,592.90/156,758.84 = 65,874.58/x
  3. Step 3: Cross multiply
    113,592.90x = 156,758.84 × 65,874.58
  4. Step 4: Simplify right side
    113,592.90x = 10,326,422,746.29
  5. Step 5: Solve for x
    x = 10,326,422,746.29/113,592.90
  6. Step 6: Final answer
    x = 90,907.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.