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Finding the Fourth Proportional to 292,671.12, 438,920.10 and 124,189.32

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Solution

The fourth proportional to 292,671.12, 438,920.10 and 124,189.32 is: 186,247.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,671.12 : 438,920.10 = 124,189.32 : x
  2. Step 2: Convert to fraction form
    292,671.12/438,920.10 = 124,189.32/x
  3. Step 3: Cross multiply
    292,671.12x = 438,920.10 × 124,189.32
  4. Step 4: Simplify right side
    292,671.12x = 54,509,188,753.33
  5. Step 5: Solve for x
    x = 54,509,188,753.33/292,671.12
  6. Step 6: Final answer
    x = 186,247.24

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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.