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Finding the Fourth Proportional to 158,429.76, 218,612.28 and 94,744.32

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Solution

The fourth proportional to 158,429.76, 218,612.28 and 94,744.32 is: 130,734.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,429.76 : 218,612.28 = 94,744.32 : x
  2. Step 2: Convert to fraction form
    158,429.76/218,612.28 = 94,744.32/x
  3. Step 3: Cross multiply
    158,429.76x = 218,612.28 × 94,744.32
  4. Step 4: Simplify right side
    158,429.76x = 20,712,271,812.25
  5. Step 5: Solve for x
    x = 20,712,271,812.25/158,429.76
  6. Step 6: Final answer
    x = 130,734.73

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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.