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Finding the Fourth Proportional to 234,957.72, 324,242.10 and 134,355.72

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Solution

The fourth proportional to 234,957.72, 324,242.10 and 134,355.72 is: 185,411.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,957.72 : 324,242.10 = 134,355.72 : x
  2. Step 2: Convert to fraction form
    234,957.72/324,242.10 = 134,355.72/x
  3. Step 3: Cross multiply
    234,957.72x = 324,242.10 × 134,355.72
  4. Step 4: Simplify right side
    234,957.72x = 43,563,780,799.81
  5. Step 5: Solve for x
    x = 43,563,780,799.81/234,957.72
  6. Step 6: Final answer
    x = 185,411.15

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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.