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Finding the Fourth Proportional to 353,139.60, 529,741.80 and 116,482.80

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Solution

The fourth proportional to 353,139.60, 529,741.80 and 116,482.80 is: 174,734.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,139.60 : 529,741.80 = 116,482.80 : x
  2. Step 2: Convert to fraction form
    353,139.60/529,741.80 = 116,482.80/x
  3. Step 3: Cross multiply
    353,139.60x = 529,741.80 × 116,482.80
  4. Step 4: Simplify right side
    353,139.60x = 61,705,808,141.04
  5. Step 5: Solve for x
    x = 61,705,808,141.04/353,139.60
  6. Step 6: Final answer
    x = 174,734.89

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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.