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Finding the Fourth Proportional to 163,757.16, 245,748.48 and 57,141.72

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Solution

The fourth proportional to 163,757.16, 245,748.48 and 57,141.72 is: 85,751.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,757.16 : 245,748.48 = 57,141.72 : x
  2. Step 2: Convert to fraction form
    163,757.16/245,748.48 = 57,141.72/x
  3. Step 3: Cross multiply
    163,757.16x = 245,748.48 × 57,141.72
  4. Step 4: Simplify right side
    163,757.16x = 14,042,490,834.59
  5. Step 5: Solve for x
    x = 14,042,490,834.59/163,757.16
  6. Step 6: Final answer
    x = 85,751.92

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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.