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Finding the Fourth Proportional to 72,564.86, 100,058.76 and 47,037.71

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Solution

The fourth proportional to 72,564.86, 100,058.76 and 47,037.71 is: 64,859.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,564.86 : 100,058.76 = 47,037.71 : x
  2. Step 2: Convert to fraction form
    72,564.86/100,058.76 = 47,037.71/x
  3. Step 3: Cross multiply
    72,564.86x = 100,058.76 × 47,037.71
  4. Step 4: Simplify right side
    72,564.86x = 4,706,535,185.99
  5. Step 5: Solve for x
    x = 4,706,535,185.99/72,564.86
  6. Step 6: Final answer
    x = 64,859.70

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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.