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Finding the Fourth Proportional to 48,389,616.60, 72,584,424.90 and 18,091,210.20

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Solution

The fourth proportional to 48,389,616.60, 72,584,424.90 and 18,091,210.20 is: 27,136,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,389,616.60 : 72,584,424.90 = 18,091,210.20 : x
  2. Step 2: Convert to fraction form
    48,389,616.60/72,584,424.90 = 18,091,210.20/x
  3. Step 3: Cross multiply
    48,389,616.60x = 72,584,424.90 × 18,091,210.20
  4. Step 4: Simplify right side
    48,389,616.60x = 1,313,140,088,112,014
  5. Step 5: Solve for x
    x = 1,313,140,088,112,014/48,389,616.60
  6. Step 6: Final answer
    x = 27,136,815.30

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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.