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Finding the Fourth Proportional to 477,036.10, 715,549.11 and 122,047.30

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Solution

The fourth proportional to 477,036.10, 715,549.11 and 122,047.30 is: 183,069.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,036.10 : 715,549.11 = 122,047.30 : x
  2. Step 2: Convert to fraction form
    477,036.10/715,549.11 = 122,047.30/x
  3. Step 3: Cross multiply
    477,036.10x = 715,549.11 × 122,047.30
  4. Step 4: Simplify right side
    477,036.10x = 87,330,836,892.90
  5. Step 5: Solve for x
    x = 87,330,836,892.90/477,036.10
  6. Step 6: Final answer
    x = 183,069.66

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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.