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Finding the Fourth Proportional to 144,853.40, 216,842.70 and 127,357.40

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Solution

The fourth proportional to 144,853.40, 216,842.70 and 127,357.40 is: 190,651.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,853.40 : 216,842.70 = 127,357.40 : x
  2. Step 2: Convert to fraction form
    144,853.40/216,842.70 = 127,357.40/x
  3. Step 3: Cross multiply
    144,853.40x = 216,842.70 × 127,357.40
  4. Step 4: Simplify right side
    144,853.40x = 27,616,522,480.98
  5. Step 5: Solve for x
    x = 27,616,522,480.98/144,853.40
  6. Step 6: Final answer
    x = 190,651.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.