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Finding the Fourth Proportional to 108,866.80, 163,319.31 and 49,708.45

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Solution

The fourth proportional to 108,866.80, 163,319.31 and 49,708.45 is: 74,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,866.80 : 163,319.31 = 49,708.45 : x
  2. Step 2: Convert to fraction form
    108,866.80/163,319.31 = 49,708.45/x
  3. Step 3: Cross multiply
    108,866.80x = 163,319.31 × 49,708.45
  4. Step 4: Simplify right side
    108,866.80x = 8,118,349,755.17
  5. Step 5: Solve for x
    x = 8,118,349,755.17/108,866.80
  6. Step 6: Final answer
    x = 74,571.40

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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.