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Finding the Fourth Proportional to 284,403.92, 392,558.42 and 168,225.02

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Solution

The fourth proportional to 284,403.92, 392,558.42 and 168,225.02 is: 232,198.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,403.92 : 392,558.42 = 168,225.02 : x
  2. Step 2: Convert to fraction form
    284,403.92/392,558.42 = 168,225.02/x
  3. Step 3: Cross multiply
    284,403.92x = 392,558.42 × 168,225.02
  4. Step 4: Simplify right side
    284,403.92x = 66,038,146,513.44
  5. Step 5: Solve for x
    x = 66,038,146,513.44/284,403.92
  6. Step 6: Final answer
    x = 232,198.44

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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.