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Finding the Fourth Proportional to 229,220.96, 316,316.76 and 127,250.87

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Solution

The fourth proportional to 229,220.96, 316,316.76 and 127,250.87 is: 175,601.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,220.96 : 316,316.76 = 127,250.87 : x
  2. Step 2: Convert to fraction form
    229,220.96/316,316.76 = 127,250.87/x
  3. Step 3: Cross multiply
    229,220.96x = 316,316.76 × 127,250.87
  4. Step 4: Simplify right side
    229,220.96x = 40,251,582,905.58
  5. Step 5: Solve for x
    x = 40,251,582,905.58/229,220.96
  6. Step 6: Final answer
    x = 175,601.67

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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.