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Finding the Fourth Proportional to 179,668.63, 247,818.39 and 145,678.55

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Solution

The fourth proportional to 179,668.63, 247,818.39 and 145,678.55 is: 200,935.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,668.63 : 247,818.39 = 145,678.55 : x
  2. Step 2: Convert to fraction form
    179,668.63/247,818.39 = 145,678.55/x
  3. Step 3: Cross multiply
    179,668.63x = 247,818.39 × 145,678.55
  4. Step 4: Simplify right side
    179,668.63x = 36,101,823,327.13
  5. Step 5: Solve for x
    x = 36,101,823,327.13/179,668.63
  6. Step 6: Final answer
    x = 200,935.60

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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.