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Finding the Fourth Proportional to 84,636.55, 116,745.33 and 54,461.08

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Solution

The fourth proportional to 84,636.55, 116,745.33 and 54,461.08 is: 75,122.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,636.55 : 116,745.33 = 54,461.08 : x
  2. Step 2: Convert to fraction form
    84,636.55/116,745.33 = 54,461.08/x
  3. Step 3: Cross multiply
    84,636.55x = 116,745.33 × 54,461.08
  4. Step 4: Simplify right side
    84,636.55x = 6,358,076,756.76
  5. Step 5: Solve for x
    x = 6,358,076,756.76/84,636.55
  6. Step 6: Final answer
    x = 75,122.12

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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.