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Finding the Fourth Proportional to 163,545.60, 245,326.32 and 45,214.32

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Solution

The fourth proportional to 163,545.60, 245,326.32 and 45,214.32 is: 67,823.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,545.60 : 245,326.32 = 45,214.32 : x
  2. Step 2: Convert to fraction form
    163,545.60/245,326.32 = 45,214.32/x
  3. Step 3: Cross multiply
    163,545.60x = 245,326.32 × 45,214.32
  4. Step 4: Simplify right side
    163,545.60x = 11,092,262,736.90
  5. Step 5: Solve for x
    x = 11,092,262,736.90/163,545.60
  6. Step 6: Final answer
    x = 67,823.67

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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.