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Finding the Fourth Proportional to 191,466.52, 264,221.51 and 105,423.66

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Solution

The fourth proportional to 191,466.52, 264,221.51 and 105,423.66 is: 145,483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,466.52 : 264,221.51 = 105,423.66 : x
  2. Step 2: Convert to fraction form
    191,466.52/264,221.51 = 105,423.66/x
  3. Step 3: Cross multiply
    191,466.52x = 264,221.51 × 105,423.66
  4. Step 4: Simplify right side
    191,466.52x = 27,855,198,107.81
  5. Step 5: Solve for x
    x = 27,855,198,107.81/191,466.52
  6. Step 6: Final answer
    x = 145,483.39

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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.