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Finding the Fourth Proportional to 293,578,036.40, 440,367,054.60 and 120,965,999.60

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Solution

The fourth proportional to 293,578,036.40, 440,367,054.60 and 120,965,999.60 is: 181,448,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,578,036.40 : 440,367,054.60 = 120,965,999.60 : x
  2. Step 2: Convert to fraction form
    293,578,036.40/440,367,054.60 = 120,965,999.60/x
  3. Step 3: Cross multiply
    293,578,036.40x = 440,367,054.60 × 120,965,999.60
  4. Step 4: Simplify right side
    293,578,036.40x = 53,269,440,950,596,776
  5. Step 5: Solve for x
    x = 53,269,440,950,596,776/293,578,036.40
  6. Step 6: Final answer
    x = 181,448,999.40

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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.