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Finding the Fourth Proportional to 187,626.48, 258,900.84 and 149,482.78

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Solution

The fourth proportional to 187,626.48, 258,900.84 and 149,482.78 is: 206,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,626.48 : 258,900.84 = 149,482.78 : x
  2. Step 2: Convert to fraction form
    187,626.48/258,900.84 = 149,482.78/x
  3. Step 3: Cross multiply
    187,626.48x = 258,900.84 × 149,482.78
  4. Step 4: Simplify right side
    187,626.48x = 38,701,217,307.54
  5. Step 5: Solve for x
    x = 38,701,217,307.54/187,626.48
  6. Step 6: Final answer
    x = 206,267.35

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1.5x scale

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.