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Finding the Fourth Proportional to 503,048.54, 754,490.80 and 147,979.52

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Solution

The fourth proportional to 503,048.54, 754,490.80 and 147,979.52 is: 221,945.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,048.54 : 754,490.80 = 147,979.52 : x
  2. Step 2: Convert to fraction form
    503,048.54/754,490.80 = 147,979.52/x
  3. Step 3: Cross multiply
    503,048.54x = 754,490.80 × 147,979.52
  4. Step 4: Simplify right side
    503,048.54x = 111,649,186,428.42
  5. Step 5: Solve for x
    x = 111,649,186,428.42/503,048.54
  6. Step 6: Final answer
    x = 221,945.16

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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.