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Finding the Fourth Proportional to 186,585.72, 257,485.68 and 101,703.12

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Solution

The fourth proportional to 186,585.72, 257,485.68 and 101,703.12 is: 140,348.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,585.72 : 257,485.68 = 101,703.12 : x
  2. Step 2: Convert to fraction form
    186,585.72/257,485.68 = 101,703.12/x
  3. Step 3: Cross multiply
    186,585.72x = 257,485.68 × 101,703.12
  4. Step 4: Simplify right side
    186,585.72x = 26,187,097,011.32
  5. Step 5: Solve for x
    x = 26,187,097,011.32/186,585.72
  6. Step 6: Final answer
    x = 140,348.88

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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.