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Finding the Fourth Proportional to 173,322.40, 260,007.90 and 68,116.90

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Solution

The fourth proportional to 173,322.40, 260,007.90 and 68,116.90 is: 102,184.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,322.40 : 260,007.90 = 68,116.90 : x
  2. Step 2: Convert to fraction form
    173,322.40/260,007.90 = 68,116.90/x
  3. Step 3: Cross multiply
    173,322.40x = 260,007.90 × 68,116.90
  4. Step 4: Simplify right side
    173,322.40x = 17,710,932,123.51
  5. Step 5: Solve for x
    x = 17,710,932,123.51/173,322.40
  6. Step 6: Final answer
    x = 102,184.90

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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.