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Finding the Fourth Proportional to 67,361,303.80, 101,041,955.70 and 64,715,908.60

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Solution

The fourth proportional to 67,361,303.80, 101,041,955.70 and 64,715,908.60 is: 97,073,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,361,303.80 : 101,041,955.70 = 64,715,908.60 : x
  2. Step 2: Convert to fraction form
    67,361,303.80/101,041,955.70 = 64,715,908.60/x
  3. Step 3: Cross multiply
    67,361,303.80x = 101,041,955.70 × 64,715,908.60
  4. Step 4: Simplify right side
    67,361,303.80x = 6,539,021,969,846,449
  5. Step 5: Solve for x
    x = 6,539,021,969,846,449/67,361,303.80
  6. Step 6: Final answer
    x = 97,073,862.90

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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.