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Finding the Fourth Proportional to 186,017.67, 256,713.17 and 105,446.77

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Solution

The fourth proportional to 186,017.67, 256,713.17 and 105,446.77 is: 145,521.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,017.67 : 256,713.17 = 105,446.77 : x
  2. Step 2: Convert to fraction form
    186,017.67/256,713.17 = 105,446.77/x
  3. Step 3: Cross multiply
    186,017.67x = 256,713.17 × 105,446.77
  4. Step 4: Simplify right side
    186,017.67x = 27,069,574,856.58
  5. Step 5: Solve for x
    x = 27,069,574,856.58/186,017.67
  6. Step 6: Final answer
    x = 145,521.52

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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.