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Finding the Fourth Proportional to 115,458.40, 173,187.60 and 98,545.60

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Solution

The fourth proportional to 115,458.40, 173,187.60 and 98,545.60 is: 147,818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,458.40 : 173,187.60 = 98,545.60 : x
  2. Step 2: Convert to fraction form
    115,458.40/173,187.60 = 98,545.60/x
  3. Step 3: Cross multiply
    115,458.40x = 173,187.60 × 98,545.60
  4. Step 4: Simplify right side
    115,458.40x = 17,066,875,954.56
  5. Step 5: Solve for x
    x = 17,066,875,954.56/115,458.40
  6. Step 6: Final answer
    x = 147,818.40

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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.