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Finding the Fourth Proportional to 148,927.40, 208,031.80 and 148,927.40

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Solution

The fourth proportional to 148,927.40, 208,031.80 and 148,927.40 is: 208,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,927.40 : 208,031.80 = 148,927.40 : x
  2. Step 2: Convert to fraction form
    148,927.40/208,031.80 = 148,927.40/x
  3. Step 3: Cross multiply
    148,927.40x = 208,031.80 × 148,927.40
  4. Step 4: Simplify right side
    148,927.40x = 30,981,635,091.32
  5. Step 5: Solve for x
    x = 30,981,635,091.32/148,927.40
  6. Step 6: Final answer
    x = 208,031.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.