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Finding the Fourth Proportional to 260,009.37, 358,776.81 and 145,273.68

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Solution

The fourth proportional to 260,009.37, 358,776.81 and 145,273.68 is: 200,457.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,009.37 : 358,776.81 = 145,273.68 : x
  2. Step 2: Convert to fraction form
    260,009.37/358,776.81 = 145,273.68/x
  3. Step 3: Cross multiply
    260,009.37x = 358,776.81 × 145,273.68
  4. Step 4: Simplify right side
    260,009.37x = 52,120,827,487.36
  5. Step 5: Solve for x
    x = 52,120,827,487.36/260,009.37
  6. Step 6: Final answer
    x = 200,457.50

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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.