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Finding the Fourth Proportional to 71,852.86, 99,159.42 and 41,638.24

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Solution

The fourth proportional to 71,852.86, 99,159.42 and 41,638.24 is: 57,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,852.86 : 99,159.42 = 41,638.24 : x
  2. Step 2: Convert to fraction form
    71,852.86/99,159.42 = 41,638.24/x
  3. Step 3: Cross multiply
    71,852.86x = 99,159.42 × 41,638.24
  4. Step 4: Simplify right side
    71,852.86x = 4,128,823,728.22
  5. Step 5: Solve for x
    x = 4,128,823,728.22/71,852.86
  6. Step 6: Final answer
    x = 57,462.20

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1.5x scale

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.