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Finding the Fourth Proportional to 98,670.59, 148,005.54 and 35,490.61

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Solution

The fourth proportional to 98,670.59, 148,005.54 and 35,490.61 is: 53,235.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,670.59 : 148,005.54 = 35,490.61 : x
  2. Step 2: Convert to fraction form
    98,670.59/148,005.54 = 35,490.61/x
  3. Step 3: Cross multiply
    98,670.59x = 148,005.54 × 35,490.61
  4. Step 4: Simplify right side
    98,670.59x = 5,252,806,897.98
  5. Step 5: Solve for x
    x = 5,252,806,897.98/98,670.59
  6. Step 6: Final answer
    x = 53,235.79

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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.