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Finding the Fourth Proportional to 342,496.80, 472,623.80 and 187,416.63

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Solution

The fourth proportional to 342,496.80, 472,623.80 and 187,416.63 is: 258,623.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,496.80 : 472,623.80 = 187,416.63 : x
  2. Step 2: Convert to fraction form
    342,496.80/472,623.80 = 187,416.63/x
  3. Step 3: Cross multiply
    342,496.80x = 472,623.80 × 187,416.63
  4. Step 4: Simplify right side
    342,496.80x = 88,577,558,916.71
  5. Step 5: Solve for x
    x = 88,577,558,916.71/342,496.80
  6. Step 6: Final answer
    x = 258,623.03

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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.