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Finding the Fourth Proportional to 191,036.88, 286,161.53 and 111,911.22

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Solution

The fourth proportional to 191,036.88, 286,161.53 and 111,911.22 is: 167,636.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,036.88 : 286,161.53 = 111,911.22 : x
  2. Step 2: Convert to fraction form
    191,036.88/286,161.53 = 111,911.22/x
  3. Step 3: Cross multiply
    191,036.88x = 286,161.53 × 111,911.22
  4. Step 4: Simplify right side
    191,036.88x = 32,024,685,379.81
  5. Step 5: Solve for x
    x = 32,024,685,379.81/191,036.88
  6. Step 6: Final answer
    x = 167,636.14

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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.