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Finding the Fourth Proportional to 49,618.40, 74,312.40 and 48,466.40

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Solution

The fourth proportional to 49,618.40, 74,312.40 and 48,466.40 is: 72,587.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,618.40 : 74,312.40 = 48,466.40 : x
  2. Step 2: Convert to fraction form
    49,618.40/74,312.40 = 48,466.40/x
  3. Step 3: Cross multiply
    49,618.40x = 74,312.40 × 48,466.40
  4. Step 4: Simplify right side
    49,618.40x = 3,601,654,503.36
  5. Step 5: Solve for x
    x = 3,601,654,503.36/49,618.40
  6. Step 6: Final answer
    x = 72,587.07

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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.