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Finding the Fourth Proportional to 115,871.30, 173,602.53 and 101,479.18

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Solution

The fourth proportional to 115,871.30, 173,602.53 and 101,479.18 is: 152,039.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,871.30 : 173,602.53 = 101,479.18 : x
  2. Step 2: Convert to fraction form
    115,871.30/173,602.53 = 101,479.18/x
  3. Step 3: Cross multiply
    115,871.30x = 173,602.53 × 101,479.18
  4. Step 4: Simplify right side
    115,871.30x = 17,617,042,390.33
  5. Step 5: Solve for x
    x = 17,617,042,390.33/115,871.30
  6. Step 6: Final answer
    x = 152,039.74

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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.