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Finding the Fourth Proportional to 114,363.60, 171,545.40 and 31,257.60

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Solution

The fourth proportional to 114,363.60, 171,545.40 and 31,257.60 is: 46,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,363.60 : 171,545.40 = 31,257.60 : x
  2. Step 2: Convert to fraction form
    114,363.60/171,545.40 = 31,257.60/x
  3. Step 3: Cross multiply
    114,363.60x = 171,545.40 × 31,257.60
  4. Step 4: Simplify right side
    114,363.60x = 5,362,097,495.04
  5. Step 5: Solve for x
    x = 5,362,097,495.04/114,363.60
  6. Step 6: Final answer
    x = 46,886.40

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1.5x scale

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.