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Finding the Fourth Proportional to 210,336.90, 315,506.16 and 52,565.52

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Solution

The fourth proportional to 210,336.90, 315,506.16 and 52,565.52 is: 78,848.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,336.90 : 315,506.16 = 52,565.52 : x
  2. Step 2: Convert to fraction form
    210,336.90/315,506.16 = 52,565.52/x
  3. Step 3: Cross multiply
    210,336.90x = 315,506.16 × 52,565.52
  4. Step 4: Simplify right side
    210,336.90x = 16,584,745,363.60
  5. Step 5: Solve for x
    x = 16,584,745,363.60/210,336.90
  6. Step 6: Final answer
    x = 78,848.48

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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.