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Finding the Fourth Proportional to 446,671,805.80, 670,028,703.90 and 139,973,924.20

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Solution

The fourth proportional to 446,671,805.80, 670,028,703.90 and 139,973,924.20 is: 209,967,465.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,671,805.80 : 670,028,703.90 = 139,973,924.20 : x
  2. Step 2: Convert to fraction form
    446,671,805.80/670,028,703.90 = 139,973,924.20/x
  3. Step 3: Cross multiply
    446,671,805.80x = 670,028,703.90 × 139,973,924.20
  4. Step 4: Simplify right side
    446,671,805.80x = 93,786,547,011,522,832
  5. Step 5: Solve for x
    x = 93,786,547,011,522,832/446,671,805.80
  6. Step 6: Final answer
    x = 209,967,465.58

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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.