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Finding the Fourth Proportional to 186,598.40, 257,505.92 and 101,715.52

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Solution

The fourth proportional to 186,598.40, 257,505.92 and 101,715.52 is: 140,367.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,598.40 : 257,505.92 = 101,715.52 : x
  2. Step 2: Convert to fraction form
    186,598.40/257,505.92 = 101,715.52/x
  3. Step 3: Cross multiply
    186,598.40x = 257,505.92 × 101,715.52
  4. Step 4: Simplify right side
    186,598.40x = 26,192,348,555.88
  5. Step 5: Solve for x
    x = 26,192,348,555.88/186,598.40
  6. Step 6: Final answer
    x = 140,367.49

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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.