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Finding the Fourth Proportional to 228,145.80, 342,187.65 and 59,679.30

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Solution

The fourth proportional to 228,145.80, 342,187.65 and 59,679.30 is: 89,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,145.80 : 342,187.65 = 59,679.30 : x
  2. Step 2: Convert to fraction form
    228,145.80/342,187.65 = 59,679.30/x
  3. Step 3: Cross multiply
    228,145.80x = 342,187.65 × 59,679.30
  4. Step 4: Simplify right side
    228,145.80x = 20,421,519,420.65
  5. Step 5: Solve for x
    x = 20,421,519,420.65/228,145.80
  6. Step 6: Final answer
    x = 89,510.83

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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.