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Finding the Fourth Proportional to 145,966.71, 201,525.99 and 111,912.06

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Solution

The fourth proportional to 145,966.71, 201,525.99 and 111,912.06 is: 154,509.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,966.71 : 201,525.99 = 111,912.06 : x
  2. Step 2: Convert to fraction form
    145,966.71/201,525.99 = 111,912.06/x
  3. Step 3: Cross multiply
    145,966.71x = 201,525.99 × 111,912.06
  4. Step 4: Simplify right side
    145,966.71x = 22,553,188,684.44
  5. Step 5: Solve for x
    x = 22,553,188,684.44/145,966.71
  6. Step 6: Final answer
    x = 154,509.13

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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.