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Finding the Fourth Proportional to 292,467.68, 438,710.47 and 100,339.42

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Solution

The fourth proportional to 292,467.68, 438,710.47 and 100,339.42 is: 150,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,467.68 : 438,710.47 = 100,339.42 : x
  2. Step 2: Convert to fraction form
    292,467.68/438,710.47 = 100,339.42/x
  3. Step 3: Cross multiply
    292,467.68x = 438,710.47 × 100,339.42
  4. Step 4: Simplify right side
    292,467.68x = 44,019,953,582.68
  5. Step 5: Solve for x
    x = 44,019,953,582.68/292,467.68
  6. Step 6: Final answer
    x = 150,512.20

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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.