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Finding the Fourth Proportional to 93,117.76, 139,598.40 and 75,544

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Solution

The fourth proportional to 93,117.76, 139,598.40 and 75,544 is: 113,252.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,117.76 : 139,598.40 = 75,544 : x
  2. Step 2: Convert to fraction form
    93,117.76/139,598.40 = 75,544/x
  3. Step 3: Cross multiply
    93,117.76x = 139,598.40 × 75,544
  4. Step 4: Simplify right side
    93,117.76x = 10,545,821,529.60
  5. Step 5: Solve for x
    x = 10,545,821,529.60/93,117.76
  6. Step 6: Final answer
    x = 113,252.53

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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.