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Finding the Fourth Proportional to 403,584.66, 605,384.28 and 104,071.50

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Solution

The fourth proportional to 403,584.66, 605,384.28 and 104,071.50 is: 156,109.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,584.66 : 605,384.28 = 104,071.50 : x
  2. Step 2: Convert to fraction form
    403,584.66/605,384.28 = 104,071.50/x
  3. Step 3: Cross multiply
    403,584.66x = 605,384.28 × 104,071.50
  4. Step 4: Simplify right side
    403,584.66x = 63,003,250,096.02
  5. Step 5: Solve for x
    x = 63,003,250,096.02/403,584.66
  6. Step 6: Final answer
    x = 156,109.13

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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.