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Finding the Fourth Proportional to 72,600,359.45, 101,716,085.95 and 72,600,359.45

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Solution

The fourth proportional to 72,600,359.45, 101,716,085.95 and 72,600,359.45 is: 101,716,085.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,600,359.45 : 101,716,085.95 = 72,600,359.45 : x
  2. Step 2: Convert to fraction form
    72,600,359.45/101,716,085.95 = 72,600,359.45/x
  3. Step 3: Cross multiply
    72,600,359.45x = 101,716,085.95 × 72,600,359.45
  4. Step 4: Simplify right side
    72,600,359.45x = 7,384,624,401,817,095
  5. Step 5: Solve for x
    x = 7,384,624,401,817,095/72,600,359.45
  6. Step 6: Final answer
    x = 101,716,085.95

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.