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Finding the Fourth Proportional to 353,435.52, 530,038.80 and 116,721.12

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Solution

The fourth proportional to 353,435.52, 530,038.80 and 116,721.12 is: 175,043.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,435.52 : 530,038.80 = 116,721.12 : x
  2. Step 2: Convert to fraction form
    353,435.52/530,038.80 = 116,721.12/x
  3. Step 3: Cross multiply
    353,435.52x = 530,038.80 × 116,721.12
  4. Step 4: Simplify right side
    353,435.52x = 61,866,722,379.46
  5. Step 5: Solve for x
    x = 61,866,722,379.46/353,435.52
  6. Step 6: Final answer
    x = 175,043.87

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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.