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Finding the Fourth Proportional to 186,437.64, 279,609.48 and 53,318.64

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Solution

The fourth proportional to 186,437.64, 279,609.48 and 53,318.64 is: 79,964.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,437.64 : 279,609.48 = 53,318.64 : x
  2. Step 2: Convert to fraction form
    186,437.64/279,609.48 = 53,318.64/x
  3. Step 3: Cross multiply
    186,437.64x = 279,609.48 × 53,318.64
  4. Step 4: Simplify right side
    186,437.64x = 14,908,397,204.71
  5. Step 5: Solve for x
    x = 14,908,397,204.71/186,437.64
  6. Step 6: Final answer
    x = 79,964.52

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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.