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Finding the Fourth Proportional to 228,995.12, 316,051.10 and 127,053.38

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Solution

The fourth proportional to 228,995.12, 316,051.10 and 127,053.38 is: 175,354.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,995.12 : 316,051.10 = 127,053.38 : x
  2. Step 2: Convert to fraction form
    228,995.12/316,051.10 = 127,053.38/x
  3. Step 3: Cross multiply
    228,995.12x = 316,051.10 × 127,053.38
  4. Step 4: Simplify right side
    228,995.12x = 40,155,360,507.72
  5. Step 5: Solve for x
    x = 40,155,360,507.72/228,995.12
  6. Step 6: Final answer
    x = 175,354.66

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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.