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Finding the Fourth Proportional to 192,381.68, 265,486.16 and 107,498.81

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Solution

The fourth proportional to 192,381.68, 265,486.16 and 107,498.81 is: 148,348.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,381.68 : 265,486.16 = 107,498.81 : x
  2. Step 2: Convert to fraction form
    192,381.68/265,486.16 = 107,498.81/x
  3. Step 3: Cross multiply
    192,381.68x = 265,486.16 × 107,498.81
  4. Step 4: Simplify right side
    192,381.68x = 28,539,446,271.47
  5. Step 5: Solve for x
    x = 28,539,446,271.47/192,381.68
  6. Step 6: Final answer
    x = 148,348.05

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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.