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Finding the Fourth Proportional to 229,358.40, 316,459.20 and 133,810.56

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Solution

The fourth proportional to 229,358.40, 316,459.20 and 133,810.56 is: 184,626.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,358.40 : 316,459.20 = 133,810.56 : x
  2. Step 2: Convert to fraction form
    229,358.40/316,459.20 = 133,810.56/x
  3. Step 3: Cross multiply
    229,358.40x = 316,459.20 × 133,810.56
  4. Step 4: Simplify right side
    229,358.40x = 42,345,582,769.15
  5. Step 5: Solve for x
    x = 42,345,582,769.15/229,358.40
  6. Step 6: Final answer
    x = 184,626.26

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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.