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Finding the Fourth Proportional to 99,108.40, 148,662.60 and 46,620.40

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Solution

The fourth proportional to 99,108.40, 148,662.60 and 46,620.40 is: 69,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,108.40 : 148,662.60 = 46,620.40 : x
  2. Step 2: Convert to fraction form
    99,108.40/148,662.60 = 46,620.40/x
  3. Step 3: Cross multiply
    99,108.40x = 148,662.60 × 46,620.40
  4. Step 4: Simplify right side
    99,108.40x = 6,930,709,877.04
  5. Step 5: Solve for x
    x = 6,930,709,877.04/99,108.40
  6. Step 6: Final answer
    x = 69,930.60

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1.5x scale

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.