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Finding the Fourth Proportional to 113,133.60, 169,700.40 and 60,645.60

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Solution

The fourth proportional to 113,133.60, 169,700.40 and 60,645.60 is: 90,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,133.60 : 169,700.40 = 60,645.60 : x
  2. Step 2: Convert to fraction form
    113,133.60/169,700.40 = 60,645.60/x
  3. Step 3: Cross multiply
    113,133.60x = 169,700.40 × 60,645.60
  4. Step 4: Simplify right side
    113,133.60x = 10,291,582,578.24
  5. Step 5: Solve for x
    x = 10,291,582,578.24/113,133.60
  6. Step 6: Final answer
    x = 90,968.40

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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.