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Finding the Fourth Proportional to 524,731.47, 787,153.45 and 145,653.81

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Solution

The fourth proportional to 524,731.47, 787,153.45 and 145,653.81 is: 218,496.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,731.47 : 787,153.45 = 145,653.81 : x
  2. Step 2: Convert to fraction form
    524,731.47/787,153.45 = 145,653.81/x
  3. Step 3: Cross multiply
    524,731.47x = 787,153.45 × 145,653.81
  4. Step 4: Simplify right side
    524,731.47x = 114,651,899,047.14
  5. Step 5: Solve for x
    x = 114,651,899,047.14/524,731.47
  6. Step 6: Final answer
    x = 218,496.33

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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.