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Finding the Fourth Proportional to 352,312.30, 528,486.23 and 99,610.93

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Solution

The fourth proportional to 352,312.30, 528,486.23 and 99,610.93 is: 149,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,312.30 : 528,486.23 = 99,610.93 : x
  2. Step 2: Convert to fraction form
    352,312.30/528,486.23 = 99,610.93/x
  3. Step 3: Cross multiply
    352,312.30x = 528,486.23 × 99,610.93
  4. Step 4: Simplify right side
    352,312.30x = 52,643,004,862.49
  5. Step 5: Solve for x
    x = 52,643,004,862.49/352,312.30
  6. Step 6: Final answer
    x = 149,421.42

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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.