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Finding the Fourth Proportional to 104,644.39, 144,405.28 and 56,897.78

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Solution

The fourth proportional to 104,644.39, 144,405.28 and 56,897.78 is: 78,516.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,644.39 : 144,405.28 = 56,897.78 : x
  2. Step 2: Convert to fraction form
    104,644.39/144,405.28 = 56,897.78/x
  3. Step 3: Cross multiply
    104,644.39x = 144,405.28 × 56,897.78
  4. Step 4: Simplify right side
    104,644.39x = 8,216,338,845.76
  5. Step 5: Solve for x
    x = 8,216,338,845.76/104,644.39
  6. Step 6: Final answer
    x = 78,516.76

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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.