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Finding the Fourth Proportional to 245,509,807.80, 368,317,855.80 and 73,004,059.20

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Solution

The fourth proportional to 245,509,807.80, 368,317,855.80 and 73,004,059.20 is: 109,521,891.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,509,807.80 : 368,317,855.80 = 73,004,059.20 : x
  2. Step 2: Convert to fraction form
    245,509,807.80/368,317,855.80 = 73,004,059.20/x
  3. Step 3: Cross multiply
    245,509,807.80x = 368,317,855.80 × 73,004,059.20
  4. Step 4: Simplify right side
    245,509,807.80x = 26,888,698,549,240,264
  5. Step 5: Solve for x
    x = 26,888,698,549,240,264/245,509,807.80
  6. Step 6: Final answer
    x = 109,521,891.57

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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.