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Finding the Fourth Proportional to 292,368.46, 438,727.65 and 126,156.46

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Solution

The fourth proportional to 292,368.46, 438,727.65 and 126,156.46 is: 189,310.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,368.46 : 438,727.65 = 126,156.46 : x
  2. Step 2: Convert to fraction form
    292,368.46/438,727.65 = 126,156.46/x
  3. Step 3: Cross multiply
    292,368.46x = 438,727.65 × 126,156.46
  4. Step 4: Simplify right side
    292,368.46x = 55,348,327,303.44
  5. Step 5: Solve for x
    x = 55,348,327,303.44/292,368.46
  6. Step 6: Final answer
    x = 189,310.18

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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.