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Finding the Fourth Proportional to 353,477.80, 530,216.70 and 116,828.20

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Solution

The fourth proportional to 353,477.80, 530,216.70 and 116,828.20 is: 175,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,477.80 : 530,216.70 = 116,828.20 : x
  2. Step 2: Convert to fraction form
    353,477.80/530,216.70 = 116,828.20/x
  3. Step 3: Cross multiply
    353,477.80x = 530,216.70 × 116,828.20
  4. Step 4: Simplify right side
    353,477.80x = 61,944,262,670.94
  5. Step 5: Solve for x
    x = 61,944,262,670.94/353,477.80
  6. Step 6: Final answer
    x = 175,242.30

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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.