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Finding the Fourth Proportional to 260,515.08, 359,415.30 and 158,498.76

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Solution

The fourth proportional to 260,515.08, 359,415.30 and 158,498.76 is: 218,670.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,515.08 : 359,415.30 = 158,498.76 : x
  2. Step 2: Convert to fraction form
    260,515.08/359,415.30 = 158,498.76/x
  3. Step 3: Cross multiply
    260,515.08x = 359,415.30 × 158,498.76
  4. Step 4: Simplify right side
    260,515.08x = 56,966,879,375.03
  5. Step 5: Solve for x
    x = 56,966,879,375.03/260,515.08
  6. Step 6: Final answer
    x = 218,670.18

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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.