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Finding the Fourth Proportional to 136,088.97, 187,813.25 and 75,664.59

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Solution

The fourth proportional to 136,088.97, 187,813.25 and 75,664.59 is: 104,422.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,088.97 : 187,813.25 = 75,664.59 : x
  2. Step 2: Convert to fraction form
    136,088.97/187,813.25 = 75,664.59/x
  3. Step 3: Cross multiply
    136,088.97x = 187,813.25 × 75,664.59
  4. Step 4: Simplify right side
    136,088.97x = 14,210,812,557.82
  5. Step 5: Solve for x
    x = 14,210,812,557.82/136,088.97
  6. Step 6: Final answer
    x = 104,422.96

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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.