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Finding the Fourth Proportional to 228,149.65, 342,110.26 and 70,357.60

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Solution

The fourth proportional to 228,149.65, 342,110.26 and 70,357.60 is: 105,501.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,149.65 : 342,110.26 = 70,357.60 : x
  2. Step 2: Convert to fraction form
    228,149.65/342,110.26 = 70,357.60/x
  3. Step 3: Cross multiply
    228,149.65x = 342,110.26 × 70,357.60
  4. Step 4: Simplify right side
    228,149.65x = 24,070,056,828.98
  5. Step 5: Solve for x
    x = 24,070,056,828.98/228,149.65
  6. Step 6: Final answer
    x = 105,501.18

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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.