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Finding the Fourth Proportional to 374,526.62, 561,527.49 and 137,838.55

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Solution

The fourth proportional to 374,526.62, 561,527.49 and 137,838.55 is: 206,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,526.62 : 561,527.49 = 137,838.55 : x
  2. Step 2: Convert to fraction form
    374,526.62/561,527.49 = 137,838.55/x
  3. Step 3: Cross multiply
    374,526.62x = 561,527.49 × 137,838.55
  4. Step 4: Simplify right side
    374,526.62x = 77,400,132,199.10
  5. Step 5: Solve for x
    x = 77,400,132,199.10/374,526.62
  6. Step 6: Final answer
    x = 206,661.23

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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.