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Finding the Fourth Proportional to 525,612.51, 788,601.74 and 165,838.92

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Solution

The fourth proportional to 525,612.51, 788,601.74 and 165,838.92 is: 248,816.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,612.51 : 788,601.74 = 165,838.92 : x
  2. Step 2: Convert to fraction form
    525,612.51/788,601.74 = 165,838.92/x
  3. Step 3: Cross multiply
    525,612.51x = 788,601.74 × 165,838.92
  4. Step 4: Simplify right side
    525,612.51x = 130,780,860,042.53
  5. Step 5: Solve for x
    x = 130,780,860,042.53/525,612.51
  6. Step 6: Final answer
    x = 248,816.11

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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.