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Finding the Fourth Proportional to 357,087.22, 535,257.18 and 120,348.16

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Solution

The fourth proportional to 357,087.22, 535,257.18 and 120,348.16 is: 180,396.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,087.22 : 535,257.18 = 120,348.16 : x
  2. Step 2: Convert to fraction form
    357,087.22/535,257.18 = 120,348.16/x
  3. Step 3: Cross multiply
    357,087.22x = 535,257.18 × 120,348.16
  4. Step 4: Simplify right side
    357,087.22x = 64,417,216,739.79
  5. Step 5: Solve for x
    x = 64,417,216,739.79/357,087.22
  6. Step 6: Final answer
    x = 180,396.31

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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.