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Finding the Fourth Proportional to 45,294.40, 67,941.60 and 42,017.60

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Solution

The fourth proportional to 45,294.40, 67,941.60 and 42,017.60 is: 63,026.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,294.40 : 67,941.60 = 42,017.60 : x
  2. Step 2: Convert to fraction form
    45,294.40/67,941.60 = 42,017.60/x
  3. Step 3: Cross multiply
    45,294.40x = 67,941.60 × 42,017.60
  4. Step 4: Simplify right side
    45,294.40x = 2,854,742,972.16
  5. Step 5: Solve for x
    x = 2,854,742,972.16/45,294.40
  6. Step 6: Final answer
    x = 63,026.40

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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.