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Finding the Fourth Proportional to 84,775.52, 116,990.70 and 52,962.90

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Solution

The fourth proportional to 84,775.52, 116,990.70 and 52,962.90 is: 73,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,775.52 : 116,990.70 = 52,962.90 : x
  2. Step 2: Convert to fraction form
    84,775.52/116,990.70 = 52,962.90/x
  3. Step 3: Cross multiply
    84,775.52x = 116,990.70 × 52,962.90
  4. Step 4: Simplify right side
    84,775.52x = 6,196,166,745.03
  5. Step 5: Solve for x
    x = 6,196,166,745.03/84,775.52
  6. Step 6: Final answer
    x = 73,089.10

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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.