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Finding the Fourth Proportional to 101,316.48, 152,019.27 and 53,920.41

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Solution

The fourth proportional to 101,316.48, 152,019.27 and 53,920.41 is: 80,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,316.48 : 152,019.27 = 53,920.41 : x
  2. Step 2: Convert to fraction form
    101,316.48/152,019.27 = 53,920.41/x
  3. Step 3: Cross multiply
    101,316.48x = 152,019.27 × 53,920.41
  4. Step 4: Simplify right side
    101,316.48x = 8,196,941,366.30
  5. Step 5: Solve for x
    x = 8,196,941,366.30/101,316.48
  6. Step 6: Final answer
    x = 80,904.32

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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.