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Finding the Fourth Proportional to 73,678.72, 110,518.84 and 58,981.06

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Solution

The fourth proportional to 73,678.72, 110,518.84 and 58,981.06 is: 88,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,678.72 : 110,518.84 = 58,981.06 : x
  2. Step 2: Convert to fraction form
    73,678.72/110,518.84 = 58,981.06/x
  3. Step 3: Cross multiply
    73,678.72x = 110,518.84 × 58,981.06
  4. Step 4: Simplify right side
    73,678.72x = 6,518,518,333.17
  5. Step 5: Solve for x
    x = 6,518,518,333.17/73,678.72
  6. Step 6: Final answer
    x = 88,472.20

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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.