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Finding the Fourth Proportional to 113,325.54, 156,389.40 and 63,024.54

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Solution

The fourth proportional to 113,325.54, 156,389.40 and 63,024.54 is: 86,973.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,325.54 : 156,389.40 = 63,024.54 : x
  2. Step 2: Convert to fraction form
    113,325.54/156,389.40 = 63,024.54/x
  3. Step 3: Cross multiply
    113,325.54x = 156,389.40 × 63,024.54
  4. Step 4: Simplify right side
    113,325.54x = 9,856,369,995.88
  5. Step 5: Solve for x
    x = 9,856,369,995.88/113,325.54
  6. Step 6: Final answer
    x = 86,973.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.