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Finding the Fourth Proportional to 541,407.60, 812,111.40 and 167,430.60

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Solution

The fourth proportional to 541,407.60, 812,111.40 and 167,430.60 is: 251,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,407.60 : 812,111.40 = 167,430.60 : x
  2. Step 2: Convert to fraction form
    541,407.60/812,111.40 = 167,430.60/x
  3. Step 3: Cross multiply
    541,407.60x = 812,111.40 × 167,430.60
  4. Step 4: Simplify right side
    541,407.60x = 135,972,298,968.84
  5. Step 5: Solve for x
    x = 135,972,298,968.84/541,407.60
  6. Step 6: Final answer
    x = 251,145.90

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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.