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Finding the Fourth Proportional to 115,465.60, 173,068.80 and 48,894.40

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Solution

The fourth proportional to 115,465.60, 173,068.80 and 48,894.40 is: 73,286.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,465.60 : 173,068.80 = 48,894.40 : x
  2. Step 2: Convert to fraction form
    115,465.60/173,068.80 = 48,894.40/x
  3. Step 3: Cross multiply
    115,465.60x = 173,068.80 × 48,894.40
  4. Step 4: Simplify right side
    115,465.60x = 8,462,095,134.72
  5. Step 5: Solve for x
    x = 8,462,095,134.72/115,465.60
  6. Step 6: Final answer
    x = 73,286.72

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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.