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Finding the Fourth Proportional to 120,055.01, 180,113.65 and 63,848.90

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Solution

The fourth proportional to 120,055.01, 180,113.65 and 63,848.90 is: 95,789.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,055.01 : 180,113.65 = 63,848.90 : x
  2. Step 2: Convert to fraction form
    120,055.01/180,113.65 = 63,848.90/x
  3. Step 3: Cross multiply
    120,055.01x = 180,113.65 × 63,848.90
  4. Step 4: Simplify right side
    120,055.01x = 11,500,058,427.49
  5. Step 5: Solve for x
    x = 11,500,058,427.49/120,055.01
  6. Step 6: Final answer
    x = 95,789.91

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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.