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Finding the Fourth Proportional to 438,525.69, 657,788.56 and 106,101.69

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Solution

The fourth proportional to 438,525.69, 657,788.56 and 106,101.69 is: 159,152.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,525.69 : 657,788.56 = 106,101.69 : x
  2. Step 2: Convert to fraction form
    438,525.69/657,788.56 = 106,101.69/x
  3. Step 3: Cross multiply
    438,525.69x = 657,788.56 × 106,101.69
  4. Step 4: Simplify right side
    438,525.69x = 69,792,477,878.67
  5. Step 5: Solve for x
    x = 69,792,477,878.67/438,525.69
  6. Step 6: Final answer
    x = 159,152.54

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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.