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Finding the Fourth Proportional to 93,242.98, 139,831.53 and 30,060.55

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Solution

The fourth proportional to 93,242.98, 139,831.53 and 30,060.55 is: 45,080.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,242.98 : 139,831.53 = 30,060.55 : x
  2. Step 2: Convert to fraction form
    93,242.98/139,831.53 = 30,060.55/x
  3. Step 3: Cross multiply
    93,242.98x = 139,831.53 × 30,060.55
  4. Step 4: Simplify right side
    93,242.98x = 4,203,412,699.14
  5. Step 5: Solve for x
    x = 4,203,412,699.14/93,242.98
  6. Step 6: Final answer
    x = 45,080.21

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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.