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Finding the Fourth Proportional to 63,151.76, 94,210 and 61,435.64

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Solution

The fourth proportional to 63,151.76, 94,210 and 61,435.64 is: 91,649.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,151.76 : 94,210 = 61,435.64 : x
  2. Step 2: Convert to fraction form
    63,151.76/94,210 = 61,435.64/x
  3. Step 3: Cross multiply
    63,151.76x = 94,210 × 61,435.64
  4. Step 4: Simplify right side
    63,151.76x = 5,787,851,644.40
  5. Step 5: Solve for x
    x = 5,787,851,644.40/63,151.76
  6. Step 6: Final answer
    x = 91,649.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.