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Finding the Fourth Proportional to 524,722.61, 787,005.48 and 145,603.41

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Solution

The fourth proportional to 524,722.61, 787,005.48 and 145,603.41 is: 218,383.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,722.61 : 787,005.48 = 145,603.41 : x
  2. Step 2: Convert to fraction form
    524,722.61/787,005.48 = 145,603.41/x
  3. Step 3: Cross multiply
    524,722.61x = 787,005.48 × 145,603.41
  4. Step 4: Simplify right side
    524,722.61x = 114,590,681,576.69
  5. Step 5: Solve for x
    x = 114,590,681,576.69/524,722.61
  6. Step 6: Final answer
    x = 218,383.35

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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.