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Finding the Fourth Proportional to 108,728.56, 163,162.14 and 49,570.12

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Solution

The fourth proportional to 108,728.56, 163,162.14 and 49,570.12 is: 74,386.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,728.56 : 163,162.14 = 49,570.12 : x
  2. Step 2: Convert to fraction form
    108,728.56/163,162.14 = 49,570.12/x
  3. Step 3: Cross multiply
    108,728.56x = 163,162.14 × 49,570.12
  4. Step 4: Simplify right side
    108,728.56x = 8,087,966,859.26
  5. Step 5: Solve for x
    x = 8,087,966,859.26/108,728.56
  6. Step 6: Final answer
    x = 74,386.77

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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.