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Finding the Fourth Proportional to 352,345.86, 528,599.52 and 152,699.76

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Solution

The fourth proportional to 352,345.86, 528,599.52 and 152,699.76 is: 229,084.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,345.86 : 528,599.52 = 152,699.76 : x
  2. Step 2: Convert to fraction form
    352,345.86/528,599.52 = 152,699.76/x
  3. Step 3: Cross multiply
    352,345.86x = 528,599.52 × 152,699.76
  4. Step 4: Simplify right side
    352,345.86x = 80,717,019,840.12
  5. Step 5: Solve for x
    x = 80,717,019,840.12/352,345.86
  6. Step 6: Final answer
    x = 229,084.63

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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.