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Finding the Fourth Proportional to 382,328.10, 573,490.13 and 98,018.10

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Solution

The fourth proportional to 382,328.10, 573,490.13 and 98,018.10 is: 147,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,328.10 : 573,490.13 = 98,018.10 : x
  2. Step 2: Convert to fraction form
    382,328.10/573,490.13 = 98,018.10/x
  3. Step 3: Cross multiply
    382,328.10x = 573,490.13 × 98,018.10
  4. Step 4: Simplify right side
    382,328.10x = 56,212,412,421.26
  5. Step 5: Solve for x
    x = 56,212,412,421.26/382,328.10
  6. Step 6: Final answer
    x = 147,026.63

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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.