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Finding the Fourth Proportional to 249,215.80, 373,378.20 and 151,664.80

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Solution

The fourth proportional to 249,215.80, 373,378.20 and 151,664.80 is: 227,226.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,215.80 : 373,378.20 = 151,664.80 : x
  2. Step 2: Convert to fraction form
    249,215.80/373,378.20 = 151,664.80/x
  3. Step 3: Cross multiply
    249,215.80x = 373,378.20 × 151,664.80
  4. Step 4: Simplify right side
    249,215.80x = 56,628,330,027.36
  5. Step 5: Solve for x
    x = 56,628,330,027.36/249,215.80
  6. Step 6: Final answer
    x = 227,226.08

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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.