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Finding the Fourth Proportional to 292,250.40, 438,548.40 and 105,237.60

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Solution

The fourth proportional to 292,250.40, 438,548.40 and 105,237.60 is: 157,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,250.40 : 438,548.40 = 105,237.60 : x
  2. Step 2: Convert to fraction form
    292,250.40/438,548.40 = 105,237.60/x
  3. Step 3: Cross multiply
    292,250.40x = 438,548.40 × 105,237.60
  4. Step 4: Simplify right side
    292,250.40x = 46,151,781,099.84
  5. Step 5: Solve for x
    x = 46,151,781,099.84/292,250.40
  6. Step 6: Final answer
    x = 157,918.62

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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.