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Finding the Fourth Proportional to 188,466.51, 260,079.41 and 102,423.45

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Solution

The fourth proportional to 188,466.51, 260,079.41 and 102,423.45 is: 141,341.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,466.51 : 260,079.41 = 102,423.45 : x
  2. Step 2: Convert to fraction form
    188,466.51/260,079.41 = 102,423.45/x
  3. Step 3: Cross multiply
    188,466.51x = 260,079.41 × 102,423.45
  4. Step 4: Simplify right side
    188,466.51x = 26,638,231,101.39
  5. Step 5: Solve for x
    x = 26,638,231,101.39/188,466.51
  6. Step 6: Final answer
    x = 141,341.98

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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.