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Finding the Fourth Proportional to 93,052.80, 139,924.80 and 77,846.40

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Solution

The fourth proportional to 93,052.80, 139,924.80 and 77,846.40 is: 117,058.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,052.80 : 139,924.80 = 77,846.40 : x
  2. Step 2: Convert to fraction form
    93,052.80/139,924.80 = 77,846.40/x
  3. Step 3: Cross multiply
    93,052.80x = 139,924.80 × 77,846.40
  4. Step 4: Simplify right side
    93,052.80x = 10,892,641,950.72
  5. Step 5: Solve for x
    x = 10,892,641,950.72/93,052.80
  6. Step 6: Final answer
    x = 117,058.72

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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.