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Finding the Fourth Proportional to 329,864.16, 455,210.64 and 178,957.92

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Solution

The fourth proportional to 329,864.16, 455,210.64 and 178,957.92 is: 246,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,864.16 : 455,210.64 = 178,957.92 : x
  2. Step 2: Convert to fraction form
    329,864.16/455,210.64 = 178,957.92/x
  3. Step 3: Cross multiply
    329,864.16x = 455,210.64 × 178,957.92
  4. Step 4: Simplify right side
    329,864.16x = 81,463,549,296.27
  5. Step 5: Solve for x
    x = 81,463,549,296.27/329,864.16
  6. Step 6: Final answer
    x = 246,960.90

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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.