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Finding the Fourth Proportional to 114,873.92, 158,477.28 and 70,136

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Solution

The fourth proportional to 114,873.92, 158,477.28 and 70,136 is: 96,757.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,873.92 : 158,477.28 = 70,136 : x
  2. Step 2: Convert to fraction form
    114,873.92/158,477.28 = 70,136/x
  3. Step 3: Cross multiply
    114,873.92x = 158,477.28 × 70,136
  4. Step 4: Simplify right side
    114,873.92x = 11,114,962,510.08
  5. Step 5: Solve for x
    x = 11,114,962,510.08/114,873.92
  6. Step 6: Final answer
    x = 96,757.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.