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Finding the Fourth Proportional to 176,438.88, 243,477.81 and 99,956.48

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Solution

The fourth proportional to 176,438.88, 243,477.81 and 99,956.48 is: 137,935.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,438.88 : 243,477.81 = 99,956.48 : x
  2. Step 2: Convert to fraction form
    176,438.88/243,477.81 = 99,956.48/x
  3. Step 3: Cross multiply
    176,438.88x = 243,477.81 × 99,956.48
  4. Step 4: Simplify right side
    176,438.88x = 24,337,183,628.32
  5. Step 5: Solve for x
    x = 24,337,183,628.32/176,438.88
  6. Step 6: Final answer
    x = 137,935.49

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1.5x scale

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.