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Finding the Fourth Proportional to 74,312.40, 102,559.56 and 44,504.40

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Solution

The fourth proportional to 74,312.40, 102,559.56 and 44,504.40 is: 61,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,312.40 : 102,559.56 = 44,504.40 : x
  2. Step 2: Convert to fraction form
    74,312.40/102,559.56 = 44,504.40/x
  3. Step 3: Cross multiply
    74,312.40x = 102,559.56 × 44,504.40
  4. Step 4: Simplify right side
    74,312.40x = 4,564,351,682.06
  5. Step 5: Solve for x
    x = 4,564,351,682.06/74,312.40
  6. Step 6: Final answer
    x = 61,421.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.