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Finding the Fourth Proportional to 357,776.09, 536,661.40 and 91,536.18

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Solution

The fourth proportional to 357,776.09, 536,661.40 and 91,536.18 is: 137,303.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,776.09 : 536,661.40 = 91,536.18 : x
  2. Step 2: Convert to fraction form
    357,776.09/536,661.40 = 91,536.18/x
  3. Step 3: Cross multiply
    357,776.09x = 536,661.40 × 91,536.18
  4. Step 4: Simplify right side
    357,776.09x = 49,123,932,439.76
  5. Step 5: Solve for x
    x = 49,123,932,439.76/357,776.09
  6. Step 6: Final answer
    x = 137,303.56

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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.