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Finding the Fourth Proportional to 121,119.59, 181,688.67 and 36,886.93

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Solution

The fourth proportional to 121,119.59, 181,688.67 and 36,886.93 is: 55,333.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,119.59 : 181,688.67 = 36,886.93 : x
  2. Step 2: Convert to fraction form
    121,119.59/181,688.67 = 36,886.93/x
  3. Step 3: Cross multiply
    121,119.59x = 181,688.67 × 36,886.93
  4. Step 4: Simplify right side
    121,119.59x = 6,701,936,797.86
  5. Step 5: Solve for x
    x = 6,701,936,797.86/121,119.59
  6. Step 6: Final answer
    x = 55,333.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.