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Finding the Fourth Proportional to 90,482.64, 124,866.36 and 50,197.20

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Solution

The fourth proportional to 90,482.64, 124,866.36 and 50,197.20 is: 69,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,482.64 : 124,866.36 = 50,197.20 : x
  2. Step 2: Convert to fraction form
    90,482.64/124,866.36 = 50,197.20/x
  3. Step 3: Cross multiply
    90,482.64x = 124,866.36 × 50,197.20
  4. Step 4: Simplify right side
    90,482.64x = 6,267,941,646.19
  5. Step 5: Solve for x
    x = 6,267,941,646.19/90,482.64
  6. Step 6: Final answer
    x = 69,272.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.