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Finding the Fourth Proportional to 91,054.68, 125,460.54 and 61,194.84

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Solution

The fourth proportional to 91,054.68, 125,460.54 and 61,194.84 is: 84,317.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,054.68 : 125,460.54 = 61,194.84 : x
  2. Step 2: Convert to fraction form
    91,054.68/125,460.54 = 61,194.84/x
  3. Step 3: Cross multiply
    91,054.68x = 125,460.54 × 61,194.84
  4. Step 4: Simplify right side
    91,054.68x = 7,677,537,671.61
  5. Step 5: Solve for x
    x = 7,677,537,671.61/91,054.68
  6. Step 6: Final answer
    x = 84,317.88

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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.