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Finding the Fourth Proportional to 104,615.22, 144,369.18 and 56,868.42

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Solution

The fourth proportional to 104,615.22, 144,369.18 and 56,868.42 is: 78,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,615.22 : 144,369.18 = 56,868.42 : x
  2. Step 2: Convert to fraction form
    104,615.22/144,369.18 = 56,868.42/x
  3. Step 3: Cross multiply
    104,615.22x = 144,369.18 × 56,868.42
  4. Step 4: Simplify right side
    104,615.22x = 8,210,047,163.30
  5. Step 5: Solve for x
    x = 8,210,047,163.30/104,615.22
  6. Step 6: Final answer
    x = 78,478.52

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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.