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Finding the Fourth Proportional to 74,889,991.80, 112,334,987.70 and 62,796,756.60

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Solution

The fourth proportional to 74,889,991.80, 112,334,987.70 and 62,796,756.60 is: 94,195,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,889,991.80 : 112,334,987.70 = 62,796,756.60 : x
  2. Step 2: Convert to fraction form
    74,889,991.80/112,334,987.70 = 62,796,756.60/x
  3. Step 3: Cross multiply
    74,889,991.80x = 112,334,987.70 × 62,796,756.60
  4. Step 4: Simplify right side
    74,889,991.80x = 7,054,272,880,260,894
  5. Step 5: Solve for x
    x = 7,054,272,880,260,894/74,889,991.80
  6. Step 6: Final answer
    x = 94,195,134.90

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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.