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Finding the Fourth Proportional to 91,308.84, 125,996.85 and 62,653.07

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Solution

The fourth proportional to 91,308.84, 125,996.85 and 62,653.07 is: 86,454.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,308.84 : 125,996.85 = 62,653.07 : x
  2. Step 2: Convert to fraction form
    91,308.84/125,996.85 = 62,653.07/x
  3. Step 3: Cross multiply
    91,308.84x = 125,996.85 × 62,653.07
  4. Step 4: Simplify right side
    91,308.84x = 7,894,088,991.20
  5. Step 5: Solve for x
    x = 7,894,088,991.20/91,308.84
  6. Step 6: Final answer
    x = 86,454.81

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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.