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Finding the Fourth Proportional to 292,876.91, 439,385.46 and 103,379.82

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Solution

The fourth proportional to 292,876.91, 439,385.46 and 103,379.82 is: 155,094.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,876.91 : 439,385.46 = 103,379.82 : x
  2. Step 2: Convert to fraction form
    292,876.91/439,385.46 = 103,379.82/x
  3. Step 3: Cross multiply
    292,876.91x = 439,385.46 × 103,379.82
  4. Step 4: Simplify right side
    292,876.91x = 45,423,589,547.33
  5. Step 5: Solve for x
    x = 45,423,589,547.33/292,876.91
  6. Step 6: Final answer
    x = 155,094.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.