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Finding the Fourth Proportional to 250,516.86, 375,745.69 and 70,615.77

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Solution

The fourth proportional to 250,516.86, 375,745.69 and 70,615.77 is: 105,915.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,516.86 : 375,745.69 = 70,615.77 : x
  2. Step 2: Convert to fraction form
    250,516.86/375,745.69 = 70,615.77/x
  3. Step 3: Cross multiply
    250,516.86x = 375,745.69 × 70,615.77
  4. Step 4: Simplify right side
    250,516.86x = 26,533,572,675.90
  5. Step 5: Solve for x
    x = 26,533,572,675.90/250,516.86
  6. Step 6: Final answer
    x = 105,915.32

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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.