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Finding the Fourth Proportional to 223,312.08, 308,184.45 and 127,816.59

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Solution

The fourth proportional to 223,312.08, 308,184.45 and 127,816.59 is: 176,394.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,312.08 : 308,184.45 = 127,816.59 : x
  2. Step 2: Convert to fraction form
    223,312.08/308,184.45 = 127,816.59/x
  3. Step 3: Cross multiply
    223,312.08x = 308,184.45 × 127,816.59
  4. Step 4: Simplify right side
    223,312.08x = 39,391,085,490.03
  5. Step 5: Solve for x
    x = 39,391,085,490.03/223,312.08
  6. Step 6: Final answer
    x = 176,394.78

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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.