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Finding the Fourth Proportional to 64,389,338.40, 96,584,007.60 and 16,520,282.40

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Solution

The fourth proportional to 64,389,338.40, 96,584,007.60 and 16,520,282.40 is: 24,780,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,389,338.40 : 96,584,007.60 = 16,520,282.40 : x
  2. Step 2: Convert to fraction form
    64,389,338.40/96,584,007.60 = 16,520,282.40/x
  3. Step 3: Cross multiply
    64,389,338.40x = 96,584,007.60 × 16,520,282.40
  4. Step 4: Simplify right side
    64,389,338.40x = 1,595,595,080,875,746.25
  5. Step 5: Solve for x
    x = 1,595,595,080,875,746.25/64,389,338.40
  6. Step 6: Final answer
    x = 24,780,423.60

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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.