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Finding the Fourth Proportional to 71,852.60, 99,156.76 and 41,643.74

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Solution

The fourth proportional to 71,852.60, 99,156.76 and 41,643.74 is: 57,468.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,852.60 : 99,156.76 = 41,643.74 : x
  2. Step 2: Convert to fraction form
    71,852.60/99,156.76 = 41,643.74/x
  3. Step 3: Cross multiply
    71,852.60x = 99,156.76 × 41,643.74
  4. Step 4: Simplify right side
    71,852.60x = 4,129,258,332.68
  5. Step 5: Solve for x
    x = 4,129,258,332.68/71,852.60
  6. Step 6: Final answer
    x = 57,468.46

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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.