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Finding the Fourth Proportional to 104,699.57, 144,485.87 and 56,953.22

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Solution

The fourth proportional to 104,699.57, 144,485.87 and 56,953.22 is: 78,595.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,699.57 : 144,485.87 = 56,953.22 : x
  2. Step 2: Convert to fraction form
    104,699.57/144,485.87 = 56,953.22/x
  3. Step 3: Cross multiply
    104,699.57x = 144,485.87 × 56,953.22
  4. Step 4: Simplify right side
    104,699.57x = 8,228,934,533.81
  5. Step 5: Solve for x
    x = 8,228,934,533.81/104,699.57
  6. Step 6: Final answer
    x = 78,595.69

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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.