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Finding the Fourth Proportional to 101,590.52, 140,148.24 and 65,792.30

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Solution

The fourth proportional to 101,590.52, 140,148.24 and 65,792.30 is: 90,763.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,590.52 : 140,148.24 = 65,792.30 : x
  2. Step 2: Convert to fraction form
    101,590.52/140,148.24 = 65,792.30/x
  3. Step 3: Cross multiply
    101,590.52x = 140,148.24 × 65,792.30
  4. Step 4: Simplify right side
    101,590.52x = 9,220,675,050.55
  5. Step 5: Solve for x
    x = 9,220,675,050.55/101,590.52
  6. Step 6: Final answer
    x = 90,763.14

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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.