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Finding the Fourth Proportional to 77,690,070, 116,525,803.68 and 60,435,510

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Solution

The fourth proportional to 77,690,070, 116,525,803.68 and 60,435,510 is: 90,646,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,690,070 : 116,525,803.68 = 60,435,510 : x
  2. Step 2: Convert to fraction form
    77,690,070/116,525,803.68 = 60,435,510/x
  3. Step 3: Cross multiply
    77,690,070x = 116,525,803.68 × 60,435,510
  4. Step 4: Simplify right side
    77,690,070x = 7,042,296,373,560,677
  5. Step 5: Solve for x
    x = 7,042,296,373,560,677/77,690,070
  6. Step 6: Final answer
    x = 90,646,029.45

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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.