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Finding the Fourth Proportional to 104,455.83, 156,741.93 and 56,423.46

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Solution

The fourth proportional to 104,455.83, 156,741.93 and 56,423.46 is: 84,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,455.83 : 156,741.93 = 56,423.46 : x
  2. Step 2: Convert to fraction form
    104,455.83/156,741.93 = 56,423.46/x
  3. Step 3: Cross multiply
    104,455.83x = 156,741.93 × 56,423.46
  4. Step 4: Simplify right side
    104,455.83x = 8,843,922,017.68
  5. Step 5: Solve for x
    x = 8,843,922,017.68/104,455.83
  6. Step 6: Final answer
    x = 84,666.62

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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.