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Finding the Fourth Proportional to 109,062.46, 150,510.54 and 61,315.66

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Solution

The fourth proportional to 109,062.46, 150,510.54 and 61,315.66 is: 84,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,062.46 : 150,510.54 = 61,315.66 : x
  2. Step 2: Convert to fraction form
    109,062.46/150,510.54 = 61,315.66/x
  3. Step 3: Cross multiply
    109,062.46x = 150,510.54 × 61,315.66
  4. Step 4: Simplify right side
    109,062.46x = 9,228,653,097.06
  5. Step 5: Solve for x
    x = 9,228,653,097.06/109,062.46
  6. Step 6: Final answer
    x = 84,618.05

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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.