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Finding the Fourth Proportional to 260,066.66, 358,887.75 and 145,346.90

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Solution

The fourth proportional to 260,066.66, 358,887.75 and 145,346.90 is: 200,576.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,066.66 : 358,887.75 = 145,346.90 : x
  2. Step 2: Convert to fraction form
    260,066.66/358,887.75 = 145,346.90/x
  3. Step 3: Cross multiply
    260,066.66x = 358,887.75 × 145,346.90
  4. Step 4: Simplify right side
    260,066.66x = 52,163,221,910.48
  5. Step 5: Solve for x
    x = 52,163,221,910.48/260,066.66
  6. Step 6: Final answer
    x = 200,576.35

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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.