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Finding the Fourth Proportional to 156,497.84, 215,969.96 and 96,038.20

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Solution

The fourth proportional to 156,497.84, 215,969.96 and 96,038.20 is: 132,534.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,497.84 : 215,969.96 = 96,038.20 : x
  2. Step 2: Convert to fraction form
    156,497.84/215,969.96 = 96,038.20/x
  3. Step 3: Cross multiply
    156,497.84x = 215,969.96 × 96,038.20
  4. Step 4: Simplify right side
    156,497.84x = 20,741,366,212.47
  5. Step 5: Solve for x
    x = 20,741,366,212.47/156,497.84
  6. Step 6: Final answer
    x = 132,534.52

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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.