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Finding the Fourth Proportional to 316,312.46, 474,468.27 and 103,080.02

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Solution

The fourth proportional to 316,312.46, 474,468.27 and 103,080.02 is: 154,619.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,312.46 : 474,468.27 = 103,080.02 : x
  2. Step 2: Convert to fraction form
    316,312.46/474,468.27 = 103,080.02/x
  3. Step 3: Cross multiply
    316,312.46x = 474,468.27 × 103,080.02
  4. Step 4: Simplify right side
    316,312.46x = 48,908,196,388.62
  5. Step 5: Solve for x
    x = 48,908,196,388.62/316,312.46
  6. Step 6: Final answer
    x = 154,619.89

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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.