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Finding the Fourth Proportional to 104,047.68, 155,957.04 and 40,848.72

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Solution

The fourth proportional to 104,047.68, 155,957.04 and 40,848.72 is: 61,228.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,047.68 : 155,957.04 = 40,848.72 : x
  2. Step 2: Convert to fraction form
    104,047.68/155,957.04 = 40,848.72/x
  3. Step 3: Cross multiply
    104,047.68x = 155,957.04 × 40,848.72
  4. Step 4: Simplify right side
    104,047.68x = 6,370,645,458.99
  5. Step 5: Solve for x
    x = 6,370,645,458.99/104,047.68
  6. Step 6: Final answer
    x = 61,228.14

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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.