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Finding the Fourth Proportional to 208,059.17, 312,014.94 and 74,903.67

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Solution

The fourth proportional to 208,059.17, 312,014.94 and 74,903.67 is: 112,328.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,059.17 : 312,014.94 = 74,903.67 : x
  2. Step 2: Convert to fraction form
    208,059.17/312,014.94 = 74,903.67/x
  3. Step 3: Cross multiply
    208,059.17x = 312,014.94 × 74,903.67
  4. Step 4: Simplify right side
    208,059.17x = 23,371,064,100.83
  5. Step 5: Solve for x
    x = 23,371,064,100.83/208,059.17
  6. Step 6: Final answer
    x = 112,328.93

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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.