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Finding the Fourth Proportional to 260,090, 390,135.16 and 63,098

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Solution

The fourth proportional to 260,090, 390,135.16 and 63,098 is: 94,647.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,090 : 390,135.16 = 63,098 : x
  2. Step 2: Convert to fraction form
    260,090/390,135.16 = 63,098/x
  3. Step 3: Cross multiply
    260,090x = 390,135.16 × 63,098
  4. Step 4: Simplify right side
    260,090x = 24,616,748,325.68
  5. Step 5: Solve for x
    x = 24,616,748,325.68/260,090
  6. Step 6: Final answer
    x = 94,647.04

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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.