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Finding the Fourth Proportional to 173,069.60, 259,561.20 and 66,430.40

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Solution

The fourth proportional to 173,069.60, 259,561.20 and 66,430.40 is: 99,629.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,069.60 : 259,561.20 = 66,430.40 : x
  2. Step 2: Convert to fraction form
    173,069.60/259,561.20 = 66,430.40/x
  3. Step 3: Cross multiply
    173,069.60x = 259,561.20 × 66,430.40
  4. Step 4: Simplify right side
    173,069.60x = 17,242,754,340.48
  5. Step 5: Solve for x
    x = 17,242,754,340.48/173,069.60
  6. Step 6: Final answer
    x = 99,629.02

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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.