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Finding the Fourth Proportional to 144,861.30, 217,291.95 and 127,365.30

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Solution

The fourth proportional to 144,861.30, 217,291.95 and 127,365.30 is: 191,047.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,861.30 : 217,291.95 = 127,365.30 : x
  2. Step 2: Convert to fraction form
    144,861.30/217,291.95 = 127,365.30/x
  3. Step 3: Cross multiply
    144,861.30x = 217,291.95 × 127,365.30
  4. Step 4: Simplify right side
    144,861.30x = 27,675,454,399.34
  5. Step 5: Solve for x
    x = 27,675,454,399.34/144,861.30
  6. Step 6: Final answer
    x = 191,047.95

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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.