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Finding the Fourth Proportional to 216,987.51, 325,691.46 and 104,746.62

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Solution

The fourth proportional to 216,987.51, 325,691.46 and 104,746.62 is: 157,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,987.51 : 325,691.46 = 104,746.62 : x
  2. Step 2: Convert to fraction form
    216,987.51/325,691.46 = 104,746.62/x
  3. Step 3: Cross multiply
    216,987.51x = 325,691.46 × 104,746.62
  4. Step 4: Simplify right side
    216,987.51x = 34,115,079,597.87
  5. Step 5: Solve for x
    x = 34,115,079,597.87/216,987.51
  6. Step 6: Final answer
    x = 157,221.40

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1.5x scale

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.