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Finding the Fourth Proportional to 207,885.96, 286,882.74 and 112,393.35

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Solution

The fourth proportional to 207,885.96, 286,882.74 and 112,393.35 is: 155,102.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,885.96 : 286,882.74 = 112,393.35 : x
  2. Step 2: Convert to fraction form
    207,885.96/286,882.74 = 112,393.35/x
  3. Step 3: Cross multiply
    207,885.96x = 286,882.74 × 112,393.35
  4. Step 4: Simplify right side
    207,885.96x = 32,243,712,205.78
  5. Step 5: Solve for x
    x = 32,243,712,205.78/207,885.96
  6. Step 6: Final answer
    x = 155,102.89

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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.