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Finding the Fourth Proportional to 353,712.70, 530,235.53 and 176,051.76

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Solution

The fourth proportional to 353,712.70, 530,235.53 and 176,051.76 is: 263,911.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,712.70 : 530,235.53 = 176,051.76 : x
  2. Step 2: Convert to fraction form
    353,712.70/530,235.53 = 176,051.76/x
  3. Step 3: Cross multiply
    353,712.70x = 530,235.53 × 176,051.76
  4. Step 4: Simplify right side
    353,712.70x = 93,348,898,271.03
  5. Step 5: Solve for x
    x = 93,348,898,271.03/353,712.70
  6. Step 6: Final answer
    x = 263,911.64

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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.