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Finding the Fourth Proportional to 125,460.54, 173,216.61 and 77,764.50

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Solution

The fourth proportional to 125,460.54, 173,216.61 and 77,764.50 is: 107,365.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,460.54 : 173,216.61 = 77,764.50 : x
  2. Step 2: Convert to fraction form
    125,460.54/173,216.61 = 77,764.50/x
  3. Step 3: Cross multiply
    125,460.54x = 173,216.61 × 77,764.50
  4. Step 4: Simplify right side
    125,460.54x = 13,470,103,068.35
  5. Step 5: Solve for x
    x = 13,470,103,068.35/125,460.54
  6. Step 6: Final answer
    x = 107,365.26

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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.