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Finding the Fourth Proportional to 156,770.64, 216,345.79 and 88,785.92

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Solution

The fourth proportional to 156,770.64, 216,345.79 and 88,785.92 is: 122,525.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,770.64 : 216,345.79 = 88,785.92 : x
  2. Step 2: Convert to fraction form
    156,770.64/216,345.79 = 88,785.92/x
  3. Step 3: Cross multiply
    156,770.64x = 216,345.79 × 88,785.92
  4. Step 4: Simplify right side
    156,770.64x = 19,208,460,003.28
  5. Step 5: Solve for x
    x = 19,208,460,003.28/156,770.64
  6. Step 6: Final answer
    x = 122,525.88

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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.