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Finding the Fourth Proportional to 108,678.57, 163,018.42 and 49,472.84

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Solution

The fourth proportional to 108,678.57, 163,018.42 and 49,472.84 is: 74,209.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,678.57 : 163,018.42 = 49,472.84 : x
  2. Step 2: Convert to fraction form
    108,678.57/163,018.42 = 49,472.84/x
  3. Step 3: Cross multiply
    108,678.57x = 163,018.42 × 49,472.84
  4. Step 4: Simplify right side
    108,678.57x = 8,064,983,270.94
  5. Step 5: Solve for x
    x = 8,064,983,270.94/108,678.57
  6. Step 6: Final answer
    x = 74,209.51

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1.5x scale

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.