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Finding the Fourth Proportional to 70,582,570.80, 105,886,297.80 and 25,170,730.80

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Solution

The fourth proportional to 70,582,570.80, 105,886,297.80 and 25,170,730.80 is: 37,760,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,582,570.80 : 105,886,297.80 = 25,170,730.80 : x
  2. Step 2: Convert to fraction form
    70,582,570.80/105,886,297.80 = 25,170,730.80/x
  3. Step 3: Cross multiply
    70,582,570.80x = 105,886,297.80 × 25,170,730.80
  4. Step 4: Simplify right side
    70,582,570.80x = 2,665,235,497,332,432
  5. Step 5: Solve for x
    x = 2,665,235,497,332,432/70,582,570.80
  6. Step 6: Final answer
    x = 37,760,533.05

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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.