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Finding the Fourth Proportional to 355,066.84, 532,416.63 and 130,369.60

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Solution

The fourth proportional to 355,066.84, 532,416.63 and 130,369.60 is: 195,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,066.84 : 532,416.63 = 130,369.60 : x
  2. Step 2: Convert to fraction form
    355,066.84/532,416.63 = 130,369.60/x
  3. Step 3: Cross multiply
    355,066.84x = 532,416.63 × 130,369.60
  4. Step 4: Simplify right side
    355,066.84x = 69,410,943,086.45
  5. Step 5: Solve for x
    x = 69,410,943,086.45/355,066.84
  6. Step 6: Final answer
    x = 195,486.98

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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.