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Finding the Fourth Proportional to 161,925.43, 242,915.81 and 55,303.51

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Solution

The fourth proportional to 161,925.43, 242,915.81 and 55,303.51 is: 82,964.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,925.43 : 242,915.81 = 55,303.51 : x
  2. Step 2: Convert to fraction form
    161,925.43/242,915.81 = 55,303.51/x
  3. Step 3: Cross multiply
    161,925.43x = 242,915.81 × 55,303.51
  4. Step 4: Simplify right side
    161,925.43x = 13,434,096,810.24
  5. Step 5: Solve for x
    x = 13,434,096,810.24/161,925.43
  6. Step 6: Final answer
    x = 82,964.71

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1.5x scale

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.