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Finding the Fourth Proportional to 261,460.92, 392,094.10 and 103,636.92

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Solution

The fourth proportional to 261,460.92, 392,094.10 and 103,636.92 is: 155,416.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,460.92 : 392,094.10 = 103,636.92 : x
  2. Step 2: Convert to fraction form
    261,460.92/392,094.10 = 103,636.92/x
  3. Step 3: Cross multiply
    261,460.92x = 392,094.10 × 103,636.92
  4. Step 4: Simplify right side
    261,460.92x = 40,635,424,874.17
  5. Step 5: Solve for x
    x = 40,635,424,874.17/261,460.92
  6. Step 6: Final answer
    x = 155,416.82

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1.5x scale

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.