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Finding the Fourth Proportional to 74,570.68, 111,823.08 and 39,502

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Solution

The fourth proportional to 74,570.68, 111,823.08 and 39,502 is: 59,235.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,570.68 : 111,823.08 = 39,502 : x
  2. Step 2: Convert to fraction form
    74,570.68/111,823.08 = 39,502/x
  3. Step 3: Cross multiply
    74,570.68x = 111,823.08 × 39,502
  4. Step 4: Simplify right side
    74,570.68x = 4,417,235,306.16
  5. Step 5: Solve for x
    x = 4,417,235,306.16/74,570.68
  6. Step 6: Final answer
    x = 59,235.55

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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.