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Finding the Fourth Proportional to 114,545.61, 171,795.74 and 38,636.64

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Solution

The fourth proportional to 114,545.61, 171,795.74 and 38,636.64 is: 57,947.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,545.61 : 171,795.74 = 38,636.64 : x
  2. Step 2: Convert to fraction form
    114,545.61/171,795.74 = 38,636.64/x
  3. Step 3: Cross multiply
    114,545.61x = 171,795.74 × 38,636.64
  4. Step 4: Simplify right side
    114,545.61x = 6,637,609,966.73
  5. Step 5: Solve for x
    x = 6,637,609,966.73/114,545.61
  6. Step 6: Final answer
    x = 57,947.31

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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.