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Finding the Fourth Proportional to 261,612.55, 361,029.86 and 146,897.58

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Solution

The fourth proportional to 261,612.55, 361,029.86 and 146,897.58 is: 202,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,612.55 : 361,029.86 = 146,897.58 : x
  2. Step 2: Convert to fraction form
    261,612.55/361,029.86 = 146,897.58/x
  3. Step 3: Cross multiply
    261,612.55x = 361,029.86 × 146,897.58
  4. Step 4: Simplify right side
    261,612.55x = 53,034,413,911.98
  5. Step 5: Solve for x
    x = 53,034,413,911.98/261,612.55
  6. Step 6: Final answer
    x = 202,721.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.