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Finding the Fourth Proportional to 223,539.64, 308,488.36 and 121,567.12

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Solution

The fourth proportional to 223,539.64, 308,488.36 and 121,567.12 is: 167,764.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,539.64 : 308,488.36 = 121,567.12 : x
  2. Step 2: Convert to fraction form
    223,539.64/308,488.36 = 121,567.12/x
  3. Step 3: Cross multiply
    223,539.64x = 308,488.36 × 121,567.12
  4. Step 4: Simplify right side
    223,539.64x = 37,502,041,478.72
  5. Step 5: Solve for x
    x = 37,502,041,478.72/223,539.64
  6. Step 6: Final answer
    x = 167,764.61

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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.