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Finding the Fourth Proportional to 145,809.14, 199,904.30 and 143,151.93

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Solution

The fourth proportional to 145,809.14, 199,904.30 and 143,151.93 is: 196,261.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,809.14 : 199,904.30 = 143,151.93 : x
  2. Step 2: Convert to fraction form
    145,809.14/199,904.30 = 143,151.93/x
  3. Step 3: Cross multiply
    145,809.14x = 199,904.30 × 143,151.93
  4. Step 4: Simplify right side
    145,809.14x = 28,616,686,181.36
  5. Step 5: Solve for x
    x = 28,616,686,181.36/145,809.14
  6. Step 6: Final answer
    x = 196,261.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.