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Finding the Fourth Proportional to 127,904.60, 191,856.90 and 101,466.20

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Solution

The fourth proportional to 127,904.60, 191,856.90 and 101,466.20 is: 152,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,904.60 : 191,856.90 = 101,466.20 : x
  2. Step 2: Convert to fraction form
    127,904.60/191,856.90 = 101,466.20/x
  3. Step 3: Cross multiply
    127,904.60x = 191,856.90 × 101,466.20
  4. Step 4: Simplify right side
    127,904.60x = 19,466,990,586.78
  5. Step 5: Solve for x
    x = 19,466,990,586.78/127,904.60
  6. Step 6: Final answer
    x = 152,199.30

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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.