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Finding the Fourth Proportional to 83,987.51, 115,902.73 and 46,261.76

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Solution

The fourth proportional to 83,987.51, 115,902.73 and 46,261.76 is: 63,841.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,987.51 : 115,902.73 = 46,261.76 : x
  2. Step 2: Convert to fraction form
    83,987.51/115,902.73 = 46,261.76/x
  3. Step 3: Cross multiply
    83,987.51x = 115,902.73 × 46,261.76
  4. Step 4: Simplify right side
    83,987.51x = 5,361,864,278.60
  5. Step 5: Solve for x
    x = 5,361,864,278.60/83,987.51
  6. Step 6: Final answer
    x = 63,841.21

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1.5x scale

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.