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Finding the Fourth Proportional to 223,779.99, 308,823.09 and 137,788.59

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Solution

The fourth proportional to 223,779.99, 308,823.09 and 137,788.59 is: 190,152.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,779.99 : 308,823.09 = 137,788.59 : x
  2. Step 2: Convert to fraction form
    223,779.99/308,823.09 = 137,788.59/x
  3. Step 3: Cross multiply
    223,779.99x = 308,823.09 × 137,788.59
  4. Step 4: Simplify right side
    223,779.99x = 42,552,297,441.60
  5. Step 5: Solve for x
    x = 42,552,297,441.60/223,779.99
  6. Step 6: Final answer
    x = 190,152.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.