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Finding the Fourth Proportional to 477,040.08, 715,555.12 and 122,051.28

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Solution

The fourth proportional to 477,040.08, 715,555.12 and 122,051.28 is: 183,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,040.08 : 715,555.12 = 122,051.28 : x
  2. Step 2: Convert to fraction form
    477,040.08/715,555.12 = 122,051.28/x
  3. Step 3: Cross multiply
    477,040.08x = 715,555.12 × 122,051.28
  4. Step 4: Simplify right side
    477,040.08x = 87,334,418,306.55
  5. Step 5: Solve for x
    x = 87,334,418,306.55/477,040.08
  6. Step 6: Final answer
    x = 183,075.64

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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.