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Finding the Fourth Proportional to 171,531.65, 236,636.05 and 103,526.89

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Solution

The fourth proportional to 171,531.65, 236,636.05 and 103,526.89 is: 142,820.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,531.65 : 236,636.05 = 103,526.89 : x
  2. Step 2: Convert to fraction form
    171,531.65/236,636.05 = 103,526.89/x
  3. Step 3: Cross multiply
    171,531.65x = 236,636.05 × 103,526.89
  4. Step 4: Simplify right side
    171,531.65x = 24,498,193,953.26
  5. Step 5: Solve for x
    x = 24,498,193,953.26/171,531.65
  6. Step 6: Final answer
    x = 142,820.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.