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Finding the Fourth Proportional to 84,875.90, 117,128.52 and 46,629.32

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Solution

The fourth proportional to 84,875.90, 117,128.52 and 46,629.32 is: 64,348.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,875.90 : 117,128.52 = 46,629.32 : x
  2. Step 2: Convert to fraction form
    84,875.90/117,128.52 = 46,629.32/x
  3. Step 3: Cross multiply
    84,875.90x = 117,128.52 × 46,629.32
  4. Step 4: Simplify right side
    84,875.90x = 5,461,623,240.21
  5. Step 5: Solve for x
    x = 5,461,623,240.21/84,875.90
  6. Step 6: Final answer
    x = 64,348.34

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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.