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Finding the Fourth Proportional to 163,541.34, 245,316.62 and 45,212.67

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Solution

The fourth proportional to 163,541.34, 245,316.62 and 45,212.67 is: 67,820.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,541.34 : 245,316.62 = 45,212.67 : x
  2. Step 2: Convert to fraction form
    163,541.34/245,316.62 = 45,212.67/x
  3. Step 3: Cross multiply
    163,541.34x = 245,316.62 × 45,212.67
  4. Step 4: Simplify right side
    163,541.34x = 11,091,419,498.61
  5. Step 5: Solve for x
    x = 11,091,419,498.61/163,541.34
  6. Step 6: Final answer
    x = 67,820.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.