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Finding the Fourth Proportional to 99,359.73, 148,969.13 and 46,740.51

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Solution

The fourth proportional to 99,359.73, 148,969.13 and 46,740.51 is: 70,077.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,359.73 : 148,969.13 = 46,740.51 : x
  2. Step 2: Convert to fraction form
    99,359.73/148,969.13 = 46,740.51/x
  3. Step 3: Cross multiply
    99,359.73x = 148,969.13 × 46,740.51
  4. Step 4: Simplify right side
    99,359.73x = 6,962,892,876.75
  5. Step 5: Solve for x
    x = 6,962,892,876.75/99,359.73
  6. Step 6: Final answer
    x = 70,077.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.