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Finding the Fourth Proportional to 370,586.20, 555,879.30 and 90,101.02

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Solution

The fourth proportional to 370,586.20, 555,879.30 and 90,101.02 is: 135,151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,586.20 : 555,879.30 = 90,101.02 : x
  2. Step 2: Convert to fraction form
    370,586.20/555,879.30 = 90,101.02/x
  3. Step 3: Cross multiply
    370,586.20x = 555,879.30 × 90,101.02
  4. Step 4: Simplify right side
    370,586.20x = 50,085,291,926.89
  5. Step 5: Solve for x
    x = 50,085,291,926.89/370,586.20
  6. Step 6: Final answer
    x = 135,151.53

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1.5x scale

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.