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Finding the Fourth Proportional to 524,928,019.60, 787,392,029.40 and 161,375,136.40

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Solution

The fourth proportional to 524,928,019.60, 787,392,029.40 and 161,375,136.40 is: 242,062,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,928,019.60 : 787,392,029.40 = 161,375,136.40 : x
  2. Step 2: Convert to fraction form
    524,928,019.60/787,392,029.40 = 161,375,136.40/x
  3. Step 3: Cross multiply
    524,928,019.60x = 787,392,029.40 × 161,375,136.40
  4. Step 4: Simplify right side
    524,928,019.60x = 127,065,496,144,697,808
  5. Step 5: Solve for x
    x = 127,065,496,144,697,808/524,928,019.60
  6. Step 6: Final answer
    x = 242,062,704.60

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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.