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Finding the Fourth Proportional to 66,178.40, 99,267.60 and 61,804.40

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Solution

The fourth proportional to 66,178.40, 99,267.60 and 61,804.40 is: 92,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,178.40 : 99,267.60 = 61,804.40 : x
  2. Step 2: Convert to fraction form
    66,178.40/99,267.60 = 61,804.40/x
  3. Step 3: Cross multiply
    66,178.40x = 99,267.60 × 61,804.40
  4. Step 4: Simplify right side
    66,178.40x = 6,135,174,457.44
  5. Step 5: Solve for x
    x = 6,135,174,457.44/66,178.40
  6. Step 6: Final answer
    x = 92,706.60

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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.