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Finding the Fourth Proportional to 65,356,253.28, 97,988,978.88 and 28,944,800.64

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Solution

The fourth proportional to 65,356,253.28, 97,988,978.88 and 28,944,800.64 is: 43,397,093.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,356,253.28 : 97,988,978.88 = 28,944,800.64 : x
  2. Step 2: Convert to fraction form
    65,356,253.28/97,988,978.88 = 28,944,800.64/x
  3. Step 3: Cross multiply
    65,356,253.28x = 97,988,978.88 × 28,944,800.64
  4. Step 4: Simplify right side
    65,356,253.28x = 2,836,271,458,598,770.50
  5. Step 5: Solve for x
    x = 2,836,271,458,598,770.50/65,356,253.28
  6. Step 6: Final answer
    x = 43,397,093.87

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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.