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Finding the Fourth Proportional to 115,552.96, 159,308.88 and 91,758.40

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Solution

The fourth proportional to 115,552.96, 159,308.88 and 91,758.40 is: 126,504.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,552.96 : 159,308.88 = 91,758.40 : x
  2. Step 2: Convert to fraction form
    115,552.96/159,308.88 = 91,758.40/x
  3. Step 3: Cross multiply
    115,552.96x = 159,308.88 × 91,758.40
  4. Step 4: Simplify right side
    115,552.96x = 14,617,927,934.59
  5. Step 5: Solve for x
    x = 14,617,927,934.59/115,552.96
  6. Step 6: Final answer
    x = 126,504.14

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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.