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Finding the Fourth Proportional to 142,632.48, 196,788.42 and 94,893.90

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Solution

The fourth proportional to 142,632.48, 196,788.42 and 94,893.90 is: 130,924.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,632.48 : 196,788.42 = 94,893.90 : x
  2. Step 2: Convert to fraction form
    142,632.48/196,788.42 = 94,893.90/x
  3. Step 3: Cross multiply
    142,632.48x = 196,788.42 × 94,893.90
  4. Step 4: Simplify right side
    142,632.48x = 18,674,020,648.64
  5. Step 5: Solve for x
    x = 18,674,020,648.64/142,632.48
  6. Step 6: Final answer
    x = 130,924.04

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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.