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Finding the Fourth Proportional to 54,310,582.80, 81,465,874.20 and 48,358,443.60

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Solution

The fourth proportional to 54,310,582.80, 81,465,874.20 and 48,358,443.60 is: 72,537,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,310,582.80 : 81,465,874.20 = 48,358,443.60 : x
  2. Step 2: Convert to fraction form
    54,310,582.80/81,465,874.20 = 48,358,443.60/x
  3. Step 3: Cross multiply
    54,310,582.80x = 81,465,874.20 × 48,358,443.60
  4. Step 4: Simplify right side
    54,310,582.80x = 3,939,562,882,825,395.50
  5. Step 5: Solve for x
    x = 3,939,562,882,825,395.50/54,310,582.80
  6. Step 6: Final answer
    x = 72,537,665.40

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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.