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Finding the Fourth Proportional to 186,453.68, 257,312.04 and 105,884.72

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Solution

The fourth proportional to 186,453.68, 257,312.04 and 105,884.72 is: 146,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,453.68 : 257,312.04 = 105,884.72 : x
  2. Step 2: Convert to fraction form
    186,453.68/257,312.04 = 105,884.72/x
  3. Step 3: Cross multiply
    186,453.68x = 257,312.04 × 105,884.72
  4. Step 4: Simplify right side
    186,453.68x = 27,245,413,308.03
  5. Step 5: Solve for x
    x = 27,245,413,308.03/186,453.68
  6. Step 6: Final answer
    x = 146,124.30

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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.