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Finding the Fourth Proportional to 142,353.54, 196,477.92 and 118,456.92

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Solution

The fourth proportional to 142,353.54, 196,477.92 and 118,456.92 is: 163,495.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,353.54 : 196,477.92 = 118,456.92 : x
  2. Step 2: Convert to fraction form
    142,353.54/196,477.92 = 118,456.92/x
  3. Step 3: Cross multiply
    142,353.54x = 196,477.92 × 118,456.92
  4. Step 4: Simplify right side
    142,353.54x = 23,274,169,251.21
  5. Step 5: Solve for x
    x = 23,274,169,251.21/142,353.54
  6. Step 6: Final answer
    x = 163,495.54

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1.5x scale

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.