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Finding the Fourth Proportional to 292,050.64, 438,100.54 and 92,366.58

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Solution

The fourth proportional to 292,050.64, 438,100.54 and 92,366.58 is: 138,557.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,050.64 : 438,100.54 = 92,366.58 : x
  2. Step 2: Convert to fraction form
    292,050.64/438,100.54 = 92,366.58/x
  3. Step 3: Cross multiply
    292,050.64x = 438,100.54 × 92,366.58
  4. Step 4: Simplify right side
    292,050.64x = 40,465,848,575.95
  5. Step 5: Solve for x
    x = 40,465,848,575.95/292,050.64
  6. Step 6: Final answer
    x = 138,557.64

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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.