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Finding the Fourth Proportional to 84,316.71, 126,495.45 and 25,157.01

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Solution

The fourth proportional to 84,316.71, 126,495.45 and 25,157.01 is: 37,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,316.71 : 126,495.45 = 25,157.01 : x
  2. Step 2: Convert to fraction form
    84,316.71/126,495.45 = 25,157.01/x
  3. Step 3: Cross multiply
    84,316.71x = 126,495.45 × 25,157.01
  4. Step 4: Simplify right side
    84,316.71x = 3,182,247,300.60
  5. Step 5: Solve for x
    x = 3,182,247,300.60/84,316.71
  6. Step 6: Final answer
    x = 37,741.60

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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.