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Finding the Fourth Proportional to 228,172.71, 314,879.00 and 127,570.71

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Solution

The fourth proportional to 228,172.71, 314,879.00 and 127,570.71 is: 176,047.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,172.71 : 314,879.00 = 127,570.71 : x
  2. Step 2: Convert to fraction form
    228,172.71/314,879.00 = 127,570.71/x
  3. Step 3: Cross multiply
    228,172.71x = 314,879.00 × 127,570.71
  4. Step 4: Simplify right side
    228,172.71x = 40,169,336,956.24
  5. Step 5: Solve for x
    x = 40,169,336,956.24/228,172.71
  6. Step 6: Final answer
    x = 176,047.95

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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.