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Finding the Fourth Proportional to 369,879.48, 554,820.66 and 89,396.28

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Solution

The fourth proportional to 369,879.48, 554,820.66 and 89,396.28 is: 134,094.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,879.48 : 554,820.66 = 89,396.28 : x
  2. Step 2: Convert to fraction form
    369,879.48/554,820.66 = 89,396.28/x
  3. Step 3: Cross multiply
    369,879.48x = 554,820.66 × 89,396.28
  4. Step 4: Simplify right side
    369,879.48x = 49,598,903,071.14
  5. Step 5: Solve for x
    x = 49,598,903,071.14/369,879.48
  6. Step 6: Final answer
    x = 134,094.77

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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.