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Finding the Fourth Proportional to 216,754.75, 299,116.80 and 118,637.51

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Solution

The fourth proportional to 216,754.75, 299,116.80 and 118,637.51 is: 163,717.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,754.75 : 299,116.80 = 118,637.51 : x
  2. Step 2: Convert to fraction form
    216,754.75/299,116.80 = 118,637.51/x
  3. Step 3: Cross multiply
    216,754.75x = 299,116.80 × 118,637.51
  4. Step 4: Simplify right side
    216,754.75x = 35,486,470,262.40
  5. Step 5: Solve for x
    x = 35,486,470,262.40/216,754.75
  6. Step 6: Final answer
    x = 163,717.15

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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.