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Finding the Fourth Proportional to 260,621.76, 359,658.72 and 141,389.76

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Solution

The fourth proportional to 260,621.76, 359,658.72 and 141,389.76 is: 195,118.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,621.76 : 359,658.72 = 141,389.76 : x
  2. Step 2: Convert to fraction form
    260,621.76/359,658.72 = 141,389.76/x
  3. Step 3: Cross multiply
    260,621.76x = 359,658.72 × 141,389.76
  4. Step 4: Simplify right side
    260,621.76x = 50,852,060,102.71
  5. Step 5: Solve for x
    x = 50,852,060,102.71/260,621.76
  6. Step 6: Final answer
    x = 195,118.24

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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.