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Finding the Fourth Proportional to 514,990.68, 772,338.36 and 155,196.36

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Solution

The fourth proportional to 514,990.68, 772,338.36 and 155,196.36 is: 232,750.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,990.68 : 772,338.36 = 155,196.36 : x
  2. Step 2: Convert to fraction form
    514,990.68/772,338.36 = 155,196.36/x
  3. Step 3: Cross multiply
    514,990.68x = 772,338.36 × 155,196.36
  4. Step 4: Simplify right side
    514,990.68x = 119,864,102,160.37
  5. Step 5: Solve for x
    x = 119,864,102,160.37/514,990.68
  6. Step 6: Final answer
    x = 232,750.04

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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.