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Finding the Fourth Proportional to 74,444,182.88, 111,671,583.76 and 19,856,460.64

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Solution

The fourth proportional to 74,444,182.88, 111,671,583.76 and 19,856,460.64 is: 29,786,107.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,444,182.88 : 111,671,583.76 = 19,856,460.64 : x
  2. Step 2: Convert to fraction form
    74,444,182.88/111,671,583.76 = 19,856,460.64/x
  3. Step 3: Cross multiply
    74,444,182.88x = 111,671,583.76 × 19,856,460.64
  4. Step 4: Simplify right side
    74,444,182.88x = 2,217,402,407,536,903.50
  5. Step 5: Solve for x
    x = 2,217,402,407,536,903.50/74,444,182.88
  6. Step 6: Final answer
    x = 29,786,107.14

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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.