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Finding the Fourth Proportional to 119,430.46, 164,821.02 and 68,458.98

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Solution

The fourth proportional to 119,430.46, 164,821.02 and 68,458.98 is: 94,477.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,430.46 : 164,821.02 = 68,458.98 : x
  2. Step 2: Convert to fraction form
    119,430.46/164,821.02 = 68,458.98/x
  3. Step 3: Cross multiply
    119,430.46x = 164,821.02 × 68,458.98
  4. Step 4: Simplify right side
    119,430.46x = 11,283,479,273.12
  5. Step 5: Solve for x
    x = 11,283,479,273.12/119,430.46
  6. Step 6: Final answer
    x = 94,477.40

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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.