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Finding the Fourth Proportional to 124,336.04, 186,503.08 and 74,430.04

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Solution

The fourth proportional to 124,336.04, 186,503.08 and 74,430.04 is: 111,644.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,336.04 : 186,503.08 = 74,430.04 : x
  2. Step 2: Convert to fraction form
    124,336.04/186,503.08 = 74,430.04/x
  3. Step 3: Cross multiply
    124,336.04x = 186,503.08 × 74,430.04
  4. Step 4: Simplify right side
    124,336.04x = 13,881,431,704.52
  5. Step 5: Solve for x
    x = 13,881,431,704.52/124,336.04
  6. Step 6: Final answer
    x = 111,644.47

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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.