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Finding the Fourth Proportional to 186,768.61, 257,740.13 and 101,885.06

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Solution

The fourth proportional to 186,768.61, 257,740.13 and 101,885.06 is: 140,601.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,768.61 : 257,740.13 = 101,885.06 : x
  2. Step 2: Convert to fraction form
    186,768.61/257,740.13 = 101,885.06/x
  3. Step 3: Cross multiply
    186,768.61x = 257,740.13 × 101,885.06
  4. Step 4: Simplify right side
    186,768.61x = 26,259,869,508.52
  5. Step 5: Solve for x
    x = 26,259,869,508.52/186,768.61
  6. Step 6: Final answer
    x = 140,601.09

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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.