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Finding the Fourth Proportional to 357,527.64, 536,290.97 and 91,288.20

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Solution

The fourth proportional to 357,527.64, 536,290.97 and 91,288.20 is: 136,932.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,527.64 : 536,290.97 = 91,288.20 : x
  2. Step 2: Convert to fraction form
    357,527.64/536,290.97 = 91,288.20/x
  3. Step 3: Cross multiply
    357,527.64x = 536,290.97 × 91,288.20
  4. Step 4: Simplify right side
    357,527.64x = 48,957,036,871.11
  5. Step 5: Solve for x
    x = 48,957,036,871.11/357,527.64
  6. Step 6: Final answer
    x = 136,932.17

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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.