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Finding the Fourth Proportional to 94,762.61, 130,772.64 and 51,742.16

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Solution

The fourth proportional to 94,762.61, 130,772.64 and 51,742.16 is: 71,404.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,762.61 : 130,772.64 = 51,742.16 : x
  2. Step 2: Convert to fraction form
    94,762.61/130,772.64 = 51,742.16/x
  3. Step 3: Cross multiply
    94,762.61x = 130,772.64 × 51,742.16
  4. Step 4: Simplify right side
    94,762.61x = 6,766,458,208.64
  5. Step 5: Solve for x
    x = 6,766,458,208.64/94,762.61
  6. Step 6: Final answer
    x = 71,404.31

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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.