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Finding the Fourth Proportional to 103,846.76, 143,311.50 and 57,907.46

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Solution

The fourth proportional to 103,846.76, 143,311.50 and 57,907.46 is: 79,913.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,846.76 : 143,311.50 = 57,907.46 : x
  2. Step 2: Convert to fraction form
    103,846.76/143,311.50 = 57,907.46/x
  3. Step 3: Cross multiply
    103,846.76x = 143,311.50 × 57,907.46
  4. Step 4: Simplify right side
    103,846.76x = 8,298,804,953.79
  5. Step 5: Solve for x
    x = 8,298,804,953.79/103,846.76
  6. Step 6: Final answer
    x = 79,913.95

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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.