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Finding the Fourth Proportional to 176,359.05, 243,390.51 and 99,891.77

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Solution

The fourth proportional to 176,359.05, 243,390.51 and 99,891.77 is: 137,859.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,359.05 : 243,390.51 = 99,891.77 : x
  2. Step 2: Convert to fraction form
    176,359.05/243,390.51 = 99,891.77/x
  3. Step 3: Cross multiply
    176,359.05x = 243,390.51 × 99,891.77
  4. Step 4: Simplify right side
    176,359.05x = 24,312,707,628.15
  5. Step 5: Solve for x
    x = 24,312,707,628.15/176,359.05
  6. Step 6: Final answer
    x = 137,859.14

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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.