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Finding the Fourth Proportional to 176,336.55, 243,371.93 and 99,859.59

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Solution

The fourth proportional to 176,336.55, 243,371.93 and 99,859.59 is: 137,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,336.55 : 243,371.93 = 99,859.59 : x
  2. Step 2: Convert to fraction form
    176,336.55/243,371.93 = 99,859.59/x
  3. Step 3: Cross multiply
    176,336.55x = 243,371.93 × 99,859.59
  4. Step 4: Simplify right side
    176,336.55x = 24,303,020,648.01
  5. Step 5: Solve for x
    x = 24,303,020,648.01/176,336.55
  6. Step 6: Final answer
    x = 137,821.80

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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.