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Finding the Fourth Proportional to 352,632.08, 528,978.06 and 99,913.68

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Solution

The fourth proportional to 352,632.08, 528,978.06 and 99,913.68 is: 149,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,632.08 : 528,978.06 = 99,913.68 : x
  2. Step 2: Convert to fraction form
    352,632.08/528,978.06 = 99,913.68/x
  3. Step 3: Cross multiply
    352,632.08x = 528,978.06 × 99,913.68
  4. Step 4: Simplify right side
    352,632.08x = 52,852,144,613.86
  5. Step 5: Solve for x
    x = 52,852,144,613.86/352,632.08
  6. Step 6: Final answer
    x = 149,879.00

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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.