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Finding the Fourth Proportional to 186,307.98, 257,100.94 and 108,796.94

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Solution

The fourth proportional to 186,307.98, 257,100.94 and 108,796.94 is: 150,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,307.98 : 257,100.94 = 108,796.94 : x
  2. Step 2: Convert to fraction form
    186,307.98/257,100.94 = 108,796.94/x
  3. Step 3: Cross multiply
    186,307.98x = 257,100.94 × 108,796.94
  4. Step 4: Simplify right side
    186,307.98x = 27,971,795,543.12
  5. Step 5: Solve for x
    x = 27,971,795,543.12/186,307.98
  6. Step 6: Final answer
    x = 150,137.40

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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.