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Finding the Fourth Proportional to 235,666.67, 353,555.36 and 77,895.12

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Solution

The fourth proportional to 235,666.67, 353,555.36 and 77,895.12 is: 116,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,666.67 : 353,555.36 = 77,895.12 : x
  2. Step 2: Convert to fraction form
    235,666.67/353,555.36 = 77,895.12/x
  3. Step 3: Cross multiply
    235,666.67x = 353,555.36 × 77,895.12
  4. Step 4: Simplify right side
    235,666.67x = 27,540,236,871.72
  5. Step 5: Solve for x
    x = 27,540,236,871.72/235,666.67
  6. Step 6: Final answer
    x = 116,860.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.