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Finding the Fourth Proportional to 164,615.20, 247,214.40 and 127,266.10

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Solution

The fourth proportional to 164,615.20, 247,214.40 and 127,266.10 is: 191,124.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,615.20 : 247,214.40 = 127,266.10 : x
  2. Step 2: Convert to fraction form
    164,615.20/247,214.40 = 127,266.10/x
  3. Step 3: Cross multiply
    164,615.20x = 247,214.40 × 127,266.10
  4. Step 4: Simplify right side
    164,615.20x = 31,462,012,551.84
  5. Step 5: Solve for x
    x = 31,462,012,551.84/164,615.20
  6. Step 6: Final answer
    x = 191,124.59

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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.