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Finding the Fourth Proportional to 156,754.09, 216,333.99 and 88,783.16

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Solution

The fourth proportional to 156,754.09, 216,333.99 and 88,783.16 is: 122,528.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,754.09 : 216,333.99 = 88,783.16 : x
  2. Step 2: Convert to fraction form
    156,754.09/216,333.99 = 88,783.16/x
  3. Step 3: Cross multiply
    156,754.09x = 216,333.99 × 88,783.16
  4. Step 4: Simplify right side
    156,754.09x = 19,206,813,722.02
  5. Step 5: Solve for x
    x = 19,206,813,722.02/156,754.09
  6. Step 6: Final answer
    x = 122,528.31

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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.