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Finding the Fourth Proportional to 99,093.84, 148,622.19 and 45,783.60

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Solution

The fourth proportional to 99,093.84, 148,622.19 and 45,783.60 is: 68,666.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,093.84 : 148,622.19 = 45,783.60 : x
  2. Step 2: Convert to fraction form
    99,093.84/148,622.19 = 45,783.60/x
  3. Step 3: Cross multiply
    99,093.84x = 148,622.19 × 45,783.60
  4. Step 4: Simplify right side
    99,093.84x = 6,804,458,898.08
  5. Step 5: Solve for x
    x = 6,804,458,898.08/99,093.84
  6. Step 6: Final answer
    x = 68,666.82

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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.