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Finding the Fourth Proportional to 107,430.10, 161,145.15 and 107,430.10

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Solution

The fourth proportional to 107,430.10, 161,145.15 and 107,430.10 is: 161,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,430.10 : 161,145.15 = 107,430.10 : x
  2. Step 2: Convert to fraction form
    107,430.10/161,145.15 = 107,430.10/x
  3. Step 3: Cross multiply
    107,430.10x = 161,145.15 × 107,430.10
  4. Step 4: Simplify right side
    107,430.10x = 17,311,839,579.02
  5. Step 5: Solve for x
    x = 17,311,839,579.02/107,430.10
  6. Step 6: Final answer
    x = 161,145.15

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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.