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Finding the Fourth Proportional to 134,685.99, 185,673.46 and 105,955.71

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Solution

The fourth proportional to 134,685.99, 185,673.46 and 105,955.71 is: 146,066.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,685.99 : 185,673.46 = 105,955.71 : x
  2. Step 2: Convert to fraction form
    134,685.99/185,673.46 = 105,955.71/x
  3. Step 3: Cross multiply
    134,685.99x = 185,673.46 × 105,955.71
  4. Step 4: Simplify right side
    134,685.99x = 19,673,162,354.09
  5. Step 5: Solve for x
    x = 19,673,162,354.09/134,685.99
  6. Step 6: Final answer
    x = 146,066.89

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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.