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Finding the Fourth Proportional to 156,435, 234,656.34 and 56,604.60

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Solution

The fourth proportional to 156,435, 234,656.34 and 56,604.60 is: 84,908.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,435 : 234,656.34 = 56,604.60 : x
  2. Step 2: Convert to fraction form
    156,435/234,656.34 = 56,604.60/x
  3. Step 3: Cross multiply
    156,435x = 234,656.34 × 56,604.60
  4. Step 4: Simplify right side
    156,435x = 13,282,628,263.16
  5. Step 5: Solve for x
    x = 13,282,628,263.16/156,435
  6. Step 6: Final answer
    x = 84,908.29

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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.