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Finding the Fourth Proportional to 113,294.40, 170,038.80 and 50,211.60

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Solution

The fourth proportional to 113,294.40, 170,038.80 and 50,211.60 is: 75,360.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,294.40 : 170,038.80 = 50,211.60 : x
  2. Step 2: Convert to fraction form
    113,294.40/170,038.80 = 50,211.60/x
  3. Step 3: Cross multiply
    113,294.40x = 170,038.80 × 50,211.60
  4. Step 4: Simplify right side
    113,294.40x = 8,537,920,210.08
  5. Step 5: Solve for x
    x = 8,537,920,210.08/113,294.40
  6. Step 6: Final answer
    x = 75,360.48

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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.