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Finding the Fourth Proportional to 104,358.56, 144,013.70 and 56,611.50

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Solution

The fourth proportional to 104,358.56, 144,013.70 and 56,611.50 is: 78,123.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,358.56 : 144,013.70 = 56,611.50 : x
  2. Step 2: Convert to fraction form
    104,358.56/144,013.70 = 56,611.50/x
  3. Step 3: Cross multiply
    104,358.56x = 144,013.70 × 56,611.50
  4. Step 4: Simplify right side
    104,358.56x = 8,152,831,577.55
  5. Step 5: Solve for x
    x = 8,152,831,577.55/104,358.56
  6. Step 6: Final answer
    x = 78,123.27

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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.