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Finding the Fourth Proportional to 70,080.83, 105,135.08 and 25,707.96

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Solution

The fourth proportional to 70,080.83, 105,135.08 and 25,707.96 is: 38,567.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,080.83 : 105,135.08 = 25,707.96 : x
  2. Step 2: Convert to fraction form
    70,080.83/105,135.08 = 25,707.96/x
  3. Step 3: Cross multiply
    70,080.83x = 105,135.08 × 25,707.96
  4. Step 4: Simplify right side
    70,080.83x = 2,702,808,495.51
  5. Step 5: Solve for x
    x = 2,702,808,495.51/70,080.83
  6. Step 6: Final answer
    x = 38,567.02

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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.