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Finding the Fourth Proportional to 64,857,610.56, 89,494,689.44 and 38,746,601.60

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Solution

The fourth proportional to 64,857,610.56, 89,494,689.44 and 38,746,601.60 is: 53,465,045.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,857,610.56 : 89,494,689.44 = 38,746,601.60 : x
  2. Step 2: Convert to fraction form
    64,857,610.56/89,494,689.44 = 38,746,601.60/x
  3. Step 3: Cross multiply
    64,857,610.56x = 89,494,689.44 × 38,746,601.60
  4. Step 4: Simplify right side
    64,857,610.56x = 3,467,615,077,047,407
  5. Step 5: Solve for x
    x = 3,467,615,077,047,407/64,857,610.56
  6. Step 6: Final answer
    x = 53,465,045.15

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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.