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Finding the Fourth Proportional to 154,702.71, 213,470.64 and 94,251.42

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Solution

The fourth proportional to 154,702.71, 213,470.64 and 94,251.42 is: 130,055.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,702.71 : 213,470.64 = 94,251.42 : x
  2. Step 2: Convert to fraction form
    154,702.71/213,470.64 = 94,251.42/x
  3. Step 3: Cross multiply
    154,702.71x = 213,470.64 × 94,251.42
  4. Step 4: Simplify right side
    154,702.71x = 20,119,910,948.31
  5. Step 5: Solve for x
    x = 20,119,910,948.31/154,702.71
  6. Step 6: Final answer
    x = 130,055.32

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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.