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Finding the Fourth Proportional to 113,413,615, 156,511,576.02 and 64,521,043

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Solution

The fourth proportional to 113,413,615, 156,511,576.02 and 64,521,043 is: 89,039,487.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,413,615 : 156,511,576.02 = 64,521,043 : x
  2. Step 2: Convert to fraction form
    113,413,615/156,511,576.02 = 64,521,043/x
  3. Step 3: Cross multiply
    113,413,615x = 156,511,576.02 × 64,521,043
  4. Step 4: Simplify right side
    113,413,615x = 10,098,290,126,384,190
  5. Step 5: Solve for x
    x = 10,098,290,126,384,190/113,413,615
  6. Step 6: Final answer
    x = 89,039,487.25

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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.