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Finding the Fourth Proportional to 352,323.95, 528,504.35 and 99,622.91

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Solution

The fourth proportional to 352,323.95, 528,504.35 and 99,622.91 is: 149,439.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,323.95 : 528,504.35 = 99,622.91 : x
  2. Step 2: Convert to fraction form
    352,323.95/528,504.35 = 99,622.91/x
  3. Step 3: Cross multiply
    352,323.95x = 528,504.35 × 99,622.91
  4. Step 4: Simplify right side
    352,323.95x = 52,651,142,117.80
  5. Step 5: Solve for x
    x = 52,651,142,117.80/352,323.95
  6. Step 6: Final answer
    x = 149,439.58

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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.