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Finding the Fourth Proportional to 223,335.36, 308,209.68 and 127,872.72

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Solution

The fourth proportional to 223,335.36, 308,209.68 and 127,872.72 is: 176,468.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,335.36 : 308,209.68 = 127,872.72 : x
  2. Step 2: Convert to fraction form
    223,335.36/308,209.68 = 127,872.72/x
  3. Step 3: Cross multiply
    223,335.36x = 308,209.68 × 127,872.72
  4. Step 4: Simplify right side
    223,335.36x = 39,411,610,111.93
  5. Step 5: Solve for x
    x = 39,411,610,111.93/223,335.36
  6. Step 6: Final answer
    x = 176,468.29

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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.