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Finding the Fourth Proportional to 223,798.08, 308,805.12 and 133,156.80

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Solution

The fourth proportional to 223,798.08, 308,805.12 and 133,156.80 is: 183,734.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,798.08 : 308,805.12 = 133,156.80 : x
  2. Step 2: Convert to fraction form
    223,798.08/308,805.12 = 133,156.80/x
  3. Step 3: Cross multiply
    223,798.08x = 308,805.12 × 133,156.80
  4. Step 4: Simplify right side
    223,798.08x = 41,119,501,602.82
  5. Step 5: Solve for x
    x = 41,119,501,602.82/223,798.08
  6. Step 6: Final answer
    x = 183,734.83

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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.