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Finding the Fourth Proportional to 186,781.67, 257,758.17 and 101,898.13

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Solution

The fourth proportional to 186,781.67, 257,758.17 and 101,898.13 is: 140,619.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,781.67 : 257,758.17 = 101,898.13 : x
  2. Step 2: Convert to fraction form
    186,781.67/257,758.17 = 101,898.13/x
  3. Step 3: Cross multiply
    186,781.67x = 257,758.17 × 101,898.13
  4. Step 4: Simplify right side
    186,781.67x = 26,265,075,515.22
  5. Step 5: Solve for x
    x = 26,265,075,515.22/186,781.67
  6. Step 6: Final answer
    x = 140,619.13

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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.