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Finding the Fourth Proportional to 292,590.82, 439,013 and 103,186.53

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Solution

The fourth proportional to 292,590.82, 439,013 and 103,186.53 is: 154,824.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,590.82 : 439,013 = 103,186.53 : x
  2. Step 2: Convert to fraction form
    292,590.82/439,013 = 103,186.53/x
  3. Step 3: Cross multiply
    292,590.82x = 439,013 × 103,186.53
  4. Step 4: Simplify right side
    292,590.82x = 45,300,228,094.89
  5. Step 5: Solve for x
    x = 45,300,228,094.89/292,590.82
  6. Step 6: Final answer
    x = 154,824.50

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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.