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Finding the Fourth Proportional to 245,545.32, 368,317.98 and 162,419.88

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Solution

The fourth proportional to 245,545.32, 368,317.98 and 162,419.88 is: 243,629.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,545.32 : 368,317.98 = 162,419.88 : x
  2. Step 2: Convert to fraction form
    245,545.32/368,317.98 = 162,419.88/x
  3. Step 3: Cross multiply
    245,545.32x = 368,317.98 × 162,419.88
  4. Step 4: Simplify right side
    245,545.32x = 59,822,162,113.44
  5. Step 5: Solve for x
    x = 59,822,162,113.44/245,545.32
  6. Step 6: Final answer
    x = 243,629.82

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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.