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Finding the Fourth Proportional to 316,312.71, 474,468.64 and 103,080.27

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Solution

The fourth proportional to 316,312.71, 474,468.64 and 103,080.27 is: 154,620.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,312.71 : 474,468.64 = 103,080.27 : x
  2. Step 2: Convert to fraction form
    316,312.71/474,468.64 = 103,080.27/x
  3. Step 3: Cross multiply
    316,312.71x = 474,468.64 × 103,080.27
  4. Step 4: Simplify right side
    316,312.71x = 48,908,355,517.73
  5. Step 5: Solve for x
    x = 48,908,355,517.73/316,312.71
  6. Step 6: Final answer
    x = 154,620.27

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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.