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Finding the Fourth Proportional to 140,596.69, 210,895.04 and 61,711.60

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Solution

The fourth proportional to 140,596.69, 210,895.04 and 61,711.60 is: 92,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,596.69 : 210,895.04 = 61,711.60 : x
  2. Step 2: Convert to fraction form
    140,596.69/210,895.04 = 61,711.60/x
  3. Step 3: Cross multiply
    140,596.69x = 210,895.04 × 61,711.60
  4. Step 4: Simplify right side
    140,596.69x = 13,014,670,041.91
  5. Step 5: Solve for x
    x = 13,014,670,041.91/140,596.69
  6. Step 6: Final answer
    x = 92,567.40

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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.