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Finding the Fourth Proportional to 477,031.10, 715,541.60 and 122,042.30

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Solution

The fourth proportional to 477,031.10, 715,541.60 and 122,042.30 is: 183,062.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,031.10 : 715,541.60 = 122,042.30 : x
  2. Step 2: Convert to fraction form
    477,031.10/715,541.60 = 122,042.30/x
  3. Step 3: Cross multiply
    477,031.10x = 715,541.60 × 122,042.30
  4. Step 4: Simplify right side
    477,031.10x = 87,326,342,609.68
  5. Step 5: Solve for x
    x = 87,326,342,609.68/477,031.10
  6. Step 6: Final answer
    x = 183,062.16

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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.