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Finding the Fourth Proportional to 216,707.92, 298,994.68 and 124,810.18

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Solution

The fourth proportional to 216,707.92, 298,994.68 and 124,810.18 is: 172,202.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,707.92 : 298,994.68 = 124,810.18 : x
  2. Step 2: Convert to fraction form
    216,707.92/298,994.68 = 124,810.18/x
  3. Step 3: Cross multiply
    216,707.92x = 298,994.68 × 124,810.18
  4. Step 4: Simplify right side
    216,707.92x = 37,317,579,829.84
  5. Step 5: Solve for x
    x = 37,317,579,829.84/216,707.92
  6. Step 6: Final answer
    x = 172,202.20

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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.