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Finding the Fourth Proportional to 116,903.22, 161,336.34 and 65,925.78

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Solution

The fourth proportional to 116,903.22, 161,336.34 and 65,925.78 is: 90,983.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,903.22 : 161,336.34 = 65,925.78 : x
  2. Step 2: Convert to fraction form
    116,903.22/161,336.34 = 65,925.78/x
  3. Step 3: Cross multiply
    116,903.22x = 161,336.34 × 65,925.78
  4. Step 4: Simplify right side
    116,903.22x = 10,636,224,056.85
  5. Step 5: Solve for x
    x = 10,636,224,056.85/116,903.22
  6. Step 6: Final answer
    x = 90,983.16

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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.