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Finding the Fourth Proportional to 477,030.10, 715,540.10 and 122,041.30

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Solution

The fourth proportional to 477,030.10, 715,540.10 and 122,041.30 is: 183,060.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,030.10 : 715,540.10 = 122,041.30 : x
  2. Step 2: Convert to fraction form
    477,030.10/715,540.10 = 122,041.30/x
  3. Step 3: Cross multiply
    477,030.10x = 715,540.10 × 122,041.30
  4. Step 4: Simplify right side
    477,030.10x = 87,325,444,006.13
  5. Step 5: Solve for x
    x = 87,325,444,006.13/477,030.10
  6. Step 6: Final answer
    x = 183,060.66

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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.