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Finding the Fourth Proportional to 88,735.50, 122,454.99 and 51,031.62

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Solution

The fourth proportional to 88,735.50, 122,454.99 and 51,031.62 is: 70,423.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,735.50 : 122,454.99 = 51,031.62 : x
  2. Step 2: Convert to fraction form
    88,735.50/122,454.99 = 51,031.62/x
  3. Step 3: Cross multiply
    88,735.50x = 122,454.99 × 51,031.62
  4. Step 4: Simplify right side
    88,735.50x = 6,249,076,516.78
  5. Step 5: Solve for x
    x = 6,249,076,516.78/88,735.50
  6. Step 6: Final answer
    x = 70,423.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.