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Finding the Fourth Proportional to 98,679.60, 148,019.40 and 63,250.20

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Solution

The fourth proportional to 98,679.60, 148,019.40 and 63,250.20 is: 94,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,679.60 : 148,019.40 = 63,250.20 : x
  2. Step 2: Convert to fraction form
    98,679.60/148,019.40 = 63,250.20/x
  3. Step 3: Cross multiply
    98,679.60x = 148,019.40 × 63,250.20
  4. Step 4: Simplify right side
    98,679.60x = 9,362,256,653.88
  5. Step 5: Solve for x
    x = 9,362,256,653.88/98,679.60
  6. Step 6: Final answer
    x = 94,875.30

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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.