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Finding the Fourth Proportional to 125,681.30, 173,521.41 and 83,297.30

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Solution

The fourth proportional to 125,681.30, 173,521.41 and 83,297.30 is: 115,004.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,681.30 : 173,521.41 = 83,297.30 : x
  2. Step 2: Convert to fraction form
    125,681.30/173,521.41 = 83,297.30/x
  3. Step 3: Cross multiply
    125,681.30x = 173,521.41 × 83,297.30
  4. Step 4: Simplify right side
    125,681.30x = 14,453,864,945.19
  5. Step 5: Solve for x
    x = 14,453,864,945.19/125,681.30
  6. Step 6: Final answer
    x = 115,004.10

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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.