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Finding the Fourth Proportional to 446,645.83, 669,824.76 and 147,055.08

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Solution

The fourth proportional to 446,645.83, 669,824.76 and 147,055.08 is: 220,535.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,645.83 : 669,824.76 = 147,055.08 : x
  2. Step 2: Convert to fraction form
    446,645.83/669,824.76 = 147,055.08/x
  3. Step 3: Cross multiply
    446,645.83x = 669,824.76 × 147,055.08
  4. Step 4: Simplify right side
    446,645.83x = 98,501,130,318.66
  5. Step 5: Solve for x
    x = 98,501,130,318.66/446,645.83
  6. Step 6: Final answer
    x = 220,535.21

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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.