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Finding the Fourth Proportional to 71,357,327.80, 107,035,991.70 and 49,833,967.30

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Solution

The fourth proportional to 71,357,327.80, 107,035,991.70 and 49,833,967.30 is: 74,750,950.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,357,327.80 : 107,035,991.70 = 49,833,967.30 : x
  2. Step 2: Convert to fraction form
    71,357,327.80/107,035,991.70 = 49,833,967.30/x
  3. Step 3: Cross multiply
    71,357,327.80x = 107,035,991.70 × 49,833,967.30
  4. Step 4: Simplify right side
    71,357,327.80x = 5,334,028,110,300,871
  5. Step 5: Solve for x
    x = 5,334,028,110,300,871/71,357,327.80
  6. Step 6: Final answer
    x = 74,750,950.95

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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.