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Finding the Fourth Proportional to 281,022.33, 387,810.82 and 153,697.92

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Solution

The fourth proportional to 281,022.33, 387,810.82 and 153,697.92 is: 212,103.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,022.33 : 387,810.82 = 153,697.92 : x
  2. Step 2: Convert to fraction form
    281,022.33/387,810.82 = 153,697.92/x
  3. Step 3: Cross multiply
    281,022.33x = 387,810.82 × 153,697.92
  4. Step 4: Simplify right side
    281,022.33x = 59,605,717,306.76
  5. Step 5: Solve for x
    x = 59,605,717,306.76/281,022.33
  6. Step 6: Final answer
    x = 212,103.14

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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.