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Finding the Fourth Proportional to 464,485.59, 696,729.51 and 127,530.90

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Solution

The fourth proportional to 464,485.59, 696,729.51 and 127,530.90 is: 191,296.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,485.59 : 696,729.51 = 127,530.90 : x
  2. Step 2: Convert to fraction form
    464,485.59/696,729.51 = 127,530.90/x
  3. Step 3: Cross multiply
    464,485.59x = 696,729.51 × 127,530.90
  4. Step 4: Simplify right side
    464,485.59x = 88,854,541,466.86
  5. Step 5: Solve for x
    x = 88,854,541,466.86/464,485.59
  6. Step 6: Final answer
    x = 191,296.66

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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.