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Finding the Fourth Proportional to 151,818.24, 209,509.20 and 84,750.24

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Solution

The fourth proportional to 151,818.24, 209,509.20 and 84,750.24 is: 116,955.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,818.24 : 209,509.20 = 84,750.24 : x
  2. Step 2: Convert to fraction form
    151,818.24/209,509.20 = 84,750.24/x
  3. Step 3: Cross multiply
    151,818.24x = 209,509.20 × 84,750.24
  4. Step 4: Simplify right side
    151,818.24x = 17,755,954,982.21
  5. Step 5: Solve for x
    x = 17,755,954,982.21/151,818.24
  6. Step 6: Final answer
    x = 116,955.35

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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.