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Finding the Fourth Proportional to 104,703.84, 144,493.64 and 56,959.76

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Solution

The fourth proportional to 104,703.84, 144,493.64 and 56,959.76 is: 78,605.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,703.84 : 144,493.64 = 56,959.76 : x
  2. Step 2: Convert to fraction form
    104,703.84/144,493.64 = 56,959.76/x
  3. Step 3: Cross multiply
    104,703.84x = 144,493.64 × 56,959.76
  4. Step 4: Simplify right side
    104,703.84x = 8,230,323,055.93
  5. Step 5: Solve for x
    x = 8,230,323,055.93/104,703.84
  6. Step 6: Final answer
    x = 78,605.74

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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.