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Finding the Fourth Proportional to 234,888.88, 352,345.61 and 66,421.53

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Solution

The fourth proportional to 234,888.88, 352,345.61 and 66,421.53 is: 99,635.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,888.88 : 352,345.61 = 66,421.53 : x
  2. Step 2: Convert to fraction form
    234,888.88/352,345.61 = 66,421.53/x
  3. Step 3: Cross multiply
    234,888.88x = 352,345.61 × 66,421.53
  4. Step 4: Simplify right side
    234,888.88x = 23,403,334,504.98
  5. Step 5: Solve for x
    x = 23,403,334,504.98/234,888.88
  6. Step 6: Final answer
    x = 99,635.77

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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.