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Finding the Fourth Proportional to 503,072.48, 754,349.04 and 148,040.40

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Solution

The fourth proportional to 503,072.48, 754,349.04 and 148,040.40 is: 221,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,072.48 : 754,349.04 = 148,040.40 : x
  2. Step 2: Convert to fraction form
    503,072.48/754,349.04 = 148,040.40/x
  3. Step 3: Cross multiply
    503,072.48x = 754,349.04 × 148,040.40
  4. Step 4: Simplify right side
    503,072.48x = 111,674,133,621.22
  5. Step 5: Solve for x
    x = 111,674,133,621.22/503,072.48
  6. Step 6: Final answer
    x = 221,984.18

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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.