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Finding the Fourth Proportional to 352,266.69, 528,421.35 and 99,566.07

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Solution

The fourth proportional to 352,266.69, 528,421.35 and 99,566.07 is: 149,355.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,266.69 : 528,421.35 = 99,566.07 : x
  2. Step 2: Convert to fraction form
    352,266.69/528,421.35 = 99,566.07/x
  3. Step 3: Cross multiply
    352,266.69x = 528,421.35 × 99,566.07
  4. Step 4: Simplify right side
    352,266.69x = 52,612,837,123.59
  5. Step 5: Solve for x
    x = 52,612,837,123.59/352,266.69
  6. Step 6: Final answer
    x = 149,355.13

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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.