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Finding the Fourth Proportional to 104,957.98, 144,840.52 and 57,211.50

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Solution

The fourth proportional to 104,957.98, 144,840.52 and 57,211.50 is: 78,951.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,957.98 : 144,840.52 = 57,211.50 : x
  2. Step 2: Convert to fraction form
    104,957.98/144,840.52 = 57,211.50/x
  3. Step 3: Cross multiply
    104,957.98x = 144,840.52 × 57,211.50
  4. Step 4: Simplify right side
    104,957.98x = 8,286,543,409.98
  5. Step 5: Solve for x
    x = 8,286,543,409.98/104,957.98
  6. Step 6: Final answer
    x = 78,951.06

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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.