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Finding the Fourth Proportional to 260,412.54, 359,379.54 and 152,981.64

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Solution

The fourth proportional to 260,412.54, 359,379.54 and 152,981.64 is: 211,120.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,412.54 : 359,379.54 = 152,981.64 : x
  2. Step 2: Convert to fraction form
    260,412.54/359,379.54 = 152,981.64/x
  3. Step 3: Cross multiply
    260,412.54x = 359,379.54 × 152,981.64
  4. Step 4: Simplify right side
    260,412.54x = 54,978,471,411.65
  5. Step 5: Solve for x
    x = 54,978,471,411.65/260,412.54
  6. Step 6: Final answer
    x = 211,120.68

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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.