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Finding the Fourth Proportional to 156,889.92, 216,539.58 and 93,215.46

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Solution

The fourth proportional to 156,889.92, 216,539.58 and 93,215.46 is: 128,656.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,889.92 : 216,539.58 = 93,215.46 : x
  2. Step 2: Convert to fraction form
    156,889.92/216,539.58 = 93,215.46/x
  3. Step 3: Cross multiply
    156,889.92x = 216,539.58 × 93,215.46
  4. Step 4: Simplify right side
    156,889.92x = 20,184,836,557.91
  5. Step 5: Solve for x
    x = 20,184,836,557.91/156,889.92
  6. Step 6: Final answer
    x = 128,656.04

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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.