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Finding the Fourth Proportional to 186,078.96, 256,847.45 and 105,560.01

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Solution

The fourth proportional to 186,078.96, 256,847.45 and 105,560.01 is: 145,705.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,078.96 : 256,847.45 = 105,560.01 : x
  2. Step 2: Convert to fraction form
    186,078.96/256,847.45 = 105,560.01/x
  3. Step 3: Cross multiply
    186,078.96x = 256,847.45 × 105,560.01
  4. Step 4: Simplify right side
    186,078.96x = 27,112,818,862.67
  5. Step 5: Solve for x
    x = 27,112,818,862.67/186,078.96
  6. Step 6: Final answer
    x = 145,705.99

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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.