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Finding the Fourth Proportional to 152,516.55, 210,485.43 and 84,554.84

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Solution

The fourth proportional to 152,516.55, 210,485.43 and 84,554.84 is: 116,692.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,516.55 : 210,485.43 = 84,554.84 : x
  2. Step 2: Convert to fraction form
    152,516.55/210,485.43 = 84,554.84/x
  3. Step 3: Cross multiply
    152,516.55x = 210,485.43 × 84,554.84
  4. Step 4: Simplify right side
    152,516.55x = 17,797,562,382.19
  5. Step 5: Solve for x
    x = 17,797,562,382.19/152,516.55
  6. Step 6: Final answer
    x = 116,692.66

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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.