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Finding the Fourth Proportional to 371,762.82, 557,643.60 and 105,525.90

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Solution

The fourth proportional to 371,762.82, 557,643.60 and 105,525.90 is: 158,288.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,762.82 : 557,643.60 = 105,525.90 : x
  2. Step 2: Convert to fraction form
    371,762.82/557,643.60 = 105,525.90/x
  3. Step 3: Cross multiply
    371,762.82x = 557,643.60 × 105,525.90
  4. Step 4: Simplify right side
    371,762.82x = 58,845,842,769.24
  5. Step 5: Solve for x
    x = 58,845,842,769.24/371,762.82
  6. Step 6: Final answer
    x = 158,288.67

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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.